diff --git a/webapp/i18n/en.json b/webapp/i18n/en.json
index 07cd448..f6c0db6 100644
--- a/webapp/i18n/en.json
+++ b/webapp/i18n/en.json
@@ -39,9 +39,10 @@
   "badges.sidebar.title": "Badges",
   "badges.popover.title": "Badges",
 
-  "badges.admin.label": "Achievements Admin:",
-  "badges.admin.placeholder": "username",
-  "badges.admin.help_text": "This user will be considered the achievements plugin administrator. They can create types, as well as modify and grant any badges.",
+  "badges.admin.label": "Achievements Administrators:",
+  "badges.admin.placeholder": "Start typing a name...",
+  "badges.admin.help_text": "These users will be considered achievements plugin administrators. They can create types, as well as modify and grant any badges.",
+  "badges.admin.no_results": "No users found",
 
   "badges.rhs.create_badge": "+ Create badge",
   "badges.rhs.edit_badge": "Edit",
diff --git a/webapp/i18n/ru.json b/webapp/i18n/ru.json
index d593c51..d69f068 100644
--- a/webapp/i18n/ru.json
+++ b/webapp/i18n/ru.json
@@ -39,9 +39,10 @@
   "badges.sidebar.title": "Значки",
   "badges.popover.title": "Значки",
 
-  "badges.admin.label": "Администратор достижений:",
-  "badges.admin.placeholder": "имя пользователя",
-  "badges.admin.help_text": "Этот пользователь будет считаться администратором плагина достижений. Он может создавать типы, а также изменять и выдавать любые значки.",
+  "badges.admin.label": "Администраторы достижений:",
+  "badges.admin.placeholder": "Начните вводить имя...",
+  "badges.admin.help_text": "Эти пользователи будут считаться администраторами плагина достижений. Они могут создавать типы, а также изменять и выдавать любые значки.",
+  "badges.admin.no_results": "Пользователь не найден",
 
   "badges.rhs.create_badge": "+ Создать значок",
   "badges.rhs.edit_badge": "Редактировать",
diff --git a/webapp/src/components/admin/badges_admin_setting.scss b/webapp/src/components/admin/badges_admin_setting.scss
new file mode 100644
index 0000000..21ced86
--- /dev/null
+++ b/webapp/src/components/admin/badges_admin_setting.scss
@@ -0,0 +1,161 @@
+.admin-user-select {
+    position: relative;
+
+    &__container {
+        display: flex;
+        flex-wrap: wrap;
+        align-items: center;
+        gap: 4px;
+        padding: 4px 8px;
+        min-height: 34px;
+        border: 1px solid rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.16);
+        border-radius: 4px;
+        background: var(--center-channel-bg, #fff);
+        cursor: text;
+
+        &:focus-within {
+            border-color: var(--button-bg, #166de0);
+            box-shadow: 0 0 0 1px var(--button-bg, #166de0);
+        }
+    }
+
+    &__icon {
+        flex-shrink: 0;
+        color: rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.56);
+    }
+
+    &__spinner {
+        flex-shrink: 0;
+        width: 18px;
+        height: 18px;
+        border: 2px solid rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.16);
+        border-top-color: var(--button-bg, #166de0);
+        border-radius: 50%;
+        animation: admin-user-select-spin 0.6s linear infinite;
+    }
+
+    &__chip {
+        display: inline-flex;
+        align-items: center;
+        gap: 4px;
+        padding: 2px 4px;
+        border-radius: 12px;
+        background: rgba(var(--button-bg-rgb, 22, 109, 224), 0.1);
+        color: var(--center-channel-color, #3d3c40);
+        font-size: 13px;
+        line-height: 20px;
+        min-width: 0;
+    }
+
+    &__chip-avatar {
+        width: 20px;
+        height: 20px;
+        border-radius: 50%;
+        flex-shrink: 0;
+    }
+
+    &__chip-name {
+        overflow: hidden;
+        text-overflow: ellipsis;
+        white-space: nowrap;
+    }
+
+    &__chip-remove {
+        display: inline-flex;
+        align-items: center;
+        justify-content: center;
+        width: 16px;
+        height: 16px;
+        padding: 0;
+        border: none;
+        border-radius: 50%;
+        background: none;
+        color: rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.56);
+        font-size: 14px;
+        line-height: 1;
+        cursor: pointer;
+        flex-shrink: 0;
+
+        &:hover {
+            background: rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.08);
+            color: var(--center-channel-color, #3d3c40);
+        }
+    }
+
+    &__input {
+        flex: 1 1 60px;
+        min-width: 60px;
+        padding: 2px 0;
+        border: none;
+        outline: none;
+        background: transparent;
+        color: var(--center-channel-color, #3d3c40);
+        font-size: 14px;
+        line-height: 24px;
+
+        &::placeholder {
+            color: rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.56);
+        }
+    }
+
+    &__dropdown {
+        position: absolute;
+        top: 100%;
+        left: 0;
+        right: 0;
+        margin-top: 4px;
+        max-height: 200px;
+        overflow-y: auto;
+        background: var(--center-channel-bg, #fff);
+        border: 1px solid rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.16);
+        border-radius: 4px;
+        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
+        z-index: 100;
+    }
+
+    &__option {
+        display: flex;
+        align-items: center;
+        gap: 8px;
+        padding: 8px 12px;
+        cursor: pointer;
+        font-size: 14px;
+        color: var(--center-channel-color, #3d3c40);
+
+        &:hover {
+            background: rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.08);
+        }
+    }
+
+    &__avatar {
+        width: 24px;
+        height: 24px;
+        border-radius: 50%;
+        flex-shrink: 0;
+    }
+
+    &__option-name {
+        font-weight: 600;
+    }
+
+    &__option-fullname {
+        color: rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.56);
+    }
+
+    &__no-results {
+        padding: 8px 12px;
+        font-size: 14px;
+        color: rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.56);
+        font-style: italic;
+
+        &--loading {
+            color: rgba(var(--center-channel-color-rgb, 61, 60, 64), 0.32);
+        }
+    }
+}
+
+@keyframes admin-user-select-spin {
+    to {
+        transform: rotate(360deg);
+    }
+}
diff --git a/webapp/src/components/admin/badges_admin_setting.tsx b/webapp/src/components/admin/badges_admin_setting.tsx
index ba3f4f4..9d95b06 100644
--- a/webapp/src/components/admin/badges_admin_setting.tsx
+++ b/webapp/src/components/admin/badges_admin_setting.tsx
@@ -1,7 +1,22 @@
-/* eslint-disable react/prop-types */
-import React, {useCallback} from 'react';
+import React, {useEffect, useMemo, useRef, useState} from 'react';
 import {FormattedMessage, useIntl} from 'react-intl';
 
+import {Client4} from 'mattermost-redux/client';
+import {UserProfile} from 'mattermost-redux/types/users';
+
+import {debounce, getUserDisplayName} from 'utils/helpers';
+import CloseIcon from 'components/icons/close_icon';
+import SearchIcon from 'components/icons/search_icon';
+
+import './badges_admin_setting.scss';
+
+type SelectedUser = {
+    id: string;
+    username: string;
+    fullName: string;
+    avatarUrl: string;
+}
+
 type Props = {
     id: string;
     value: string;
@@ -17,36 +32,203 @@ type Props = {
 
 const BadgesAdminSetting: React.FC<Props> = ({id, value, disabled, onChange, setSaveNeeded}) => {
     const intl = useIntl();
+    const containerRef = useRef<HTMLDivElement>(null);
+    const inputRef = useRef<HTMLInputElement>(null);
 
-    const handleChange = useCallback((e: React.ChangeEvent<HTMLInputElement>) => {
-        onChange(id, e.target.value);
+    const [searchTerm, setSearchTerm] = useState('');
+    const [results, setResults] = useState<UserProfile[]>([]);
+    const [dropdownOpen, setDropdownOpen] = useState(false);
+    const [loading, setLoading] = useState(false);
+    const [selectedUsers, setSelectedUsers] = useState<SelectedUser[]>([]);
+
+    useEffect(() => {
+        if (!value) {
+            return;
+        }
+        const usernames = value.split(',').map((u) => u.trim()).filter(Boolean);
+        Promise.all(usernames.map(async (username) => {
+            try {
+                const user = await Client4.getUserByUsername(username);
+                return {
+                    id: user.id,
+                    username: user.username,
+                    fullName: getUserDisplayName(user),
+                    avatarUrl: Client4.getProfilePictureUrl(user.id, user.last_picture_update),
+                };
+            } catch {
+                return {id: '', username, fullName: '', avatarUrl: ''};
+            }
+        })).then(setSelectedUsers);
+    }, []); // eslint-disable-line react-hooks/exhaustive-deps
+
+    useEffect(() => {
+        const handleClickOutside = (e: MouseEvent) => {
+            if (containerRef.current && !containerRef.current.contains(e.target as Node)) {
+                setDropdownOpen(false);
+                setSearchTerm('');
+            }
+        };
+        document.addEventListener('mousedown', handleClickOutside);
+        return () => document.removeEventListener('mousedown', handleClickOutside);
+    }, []);
+
+    const performSearch = async (term: string, excluded: Set<string>) => {
+        if (!term) {
+            setResults([]);
+            setDropdownOpen(false);
+            setLoading(false);
+            return;
+        }
+        setLoading(true);
+        try {
+            const data = await Client4.autocompleteUsers(term, '', '', {limit: 20});
+            setResults(data.users.filter((u: UserProfile) => !excluded.has(u.username)));
+        } catch {
+            setResults([]);
+        } finally {
+            setLoading(false);
+        }
+    };
+
+    const doSearch = useMemo(() => debounce(performSearch, 400), []); // eslint-disable-line react-hooks/exhaustive-deps
+
+    const saveValue = (users: SelectedUser[]) => {
+        onChange(id, users.map((u) => u.username).join(','));
         setSaveNeeded();
-    }, [id, onChange, setSaveNeeded]);
+    };
+
+    const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+        const term = e.target.value;
+        setSearchTerm(term);
+        if (term) {
+            setDropdownOpen(true);
+        }
+        doSearch(term, new Set(selectedUsers.map((u) => u.username)));
+    };
+
+    const handleSelect = (user: UserProfile) => {
+        const next = [...selectedUsers, {
+            id: user.id,
+            username: user.username,
+            fullName: getUserDisplayName(user),
+            avatarUrl: Client4.getProfilePictureUrl(user.id, user.last_picture_update),
+        }];
+        setSelectedUsers(next);
+        saveValue(next);
+        setSearchTerm('');
+        setResults([]);
+        setDropdownOpen(false);
+        inputRef.current?.focus();
+    };
+
+    const handleRemove = (username: string) => {
+        const next = selectedUsers.filter((u) => u.username !== username);
+        setSelectedUsers(next);
+        saveValue(next);
+    };
 
     return (
         <div className='form-group'>
             <label className='control-label col-sm-4'>
                 <FormattedMessage
                     id='badges.admin.label'
-                    defaultMessage='Администратор достижений:'
+                    defaultMessage='Администраторы достижений:'
                 />
             </label>
             <div className='col-sm-8'>
-                <input
-                    className='form-control'
-                    type='text'
-                    value={value || ''}
-                    disabled={disabled}
-                    onChange={handleChange}
-                    placeholder={intl.formatMessage({
-                        id: 'badges.admin.placeholder',
-                        defaultMessage: 'username',
-                    })}
-                />
+                <div
+                    className='admin-user-select'
+                    ref={containerRef}
+                >
+                    <div
+                        className='admin-user-select__container'
+                        onClick={() => inputRef.current?.focus()}
+                    >
+                        {loading ? (
+                            <div className='admin-user-select__spinner'/>
+                        ) : (
+                            <SearchIcon/>
+                        )}
+                        {selectedUsers.map((user) => (
+                            <span
+                                key={user.username}
+                                className='admin-user-select__chip'
+                            >
+                                {user.avatarUrl && (
+                                    <img
+                                        className='admin-user-select__chip-avatar'
+                                        src={user.avatarUrl}
+                                        alt={user.username}
+                                    />
+                                )}
+                                <span className='admin-user-select__chip-name'>
+                                    {user.fullName || user.username}
+                                </span>
+                                {!disabled && (
+                                    <button
+                                        type='button'
+                                        className='admin-user-select__chip-remove'
+                                        onClick={(e) => {
+                                            e.stopPropagation();
+                                            handleRemove(user.username);
+                                        }}
+                                    >
+                                        <CloseIcon size={12}/>
+                                    </button>
+                                )}
+                            </span>
+                        ))}
+                        <input
+                            ref={inputRef}
+                            className='admin-user-select__input'
+                            type='text'
+                            value={searchTerm}
+                            disabled={disabled}
+                            onChange={handleInputChange}
+                            placeholder={selectedUsers.length === 0 ? intl.formatMessage({
+                                id: 'badges.admin.placeholder',
+                                defaultMessage: 'Начните вводить имя...',
+                            }) : ''}
+                        />
+                    </div>
+                    {dropdownOpen && (
+                        <div className='admin-user-select__dropdown'>
+                            {results.length === 0 && searchTerm && (
+                                <div className={`admin-user-select__no-results${loading ? ' admin-user-select__no-results--loading' : ''}`}>
+                                    <FormattedMessage
+                                        id='badges.admin.no_results'
+                                        defaultMessage='Пользователь не найден'
+                                    />
+                                </div>
+                            )}
+                            {results.map((user) => (
+                                <div
+                                    key={user.id}
+                                    className='admin-user-select__option'
+                                    onClick={() => handleSelect(user)}
+                                >
+                                    <img
+                                        className='admin-user-select__avatar'
+                                        src={Client4.getProfilePictureUrl(user.id, user.last_picture_update)}
+                                        alt={user.username}
+                                    />
+                                    <span className='admin-user-select__option-name'>
+                                        {user.username}
+                                    </span>
+                                    {(user.first_name || user.last_name) && (
+                                        <span className='admin-user-select__option-fullname'>
+                                            {'— '}{`${user.first_name} ${user.last_name}`.trim()}
+                                        </span>
+                                    )}
+                                </div>
+                            ))}
+                        </div>
+                    )}
+                </div>
                 <div className='help-text'>
                     <FormattedMessage
                         id='badges.admin.help_text'
-                        defaultMessage='Этот пользователь будет считаться администратором плагина достижений. Он может создавать типы, а также изменять и выдавать любые значки.'
+                        defaultMessage='Эти пользователи будут считаться администраторами плагина достижений. Они могут создавать типы, а также изменять и выдавать любые значки.'
                     />
                 </div>
             </div>
diff --git a/webapp/src/components/badge_modal/index.tsx b/webapp/src/components/badge_modal/index.tsx
index bc7115b..e8565fe 100644
--- a/webapp/src/components/badge_modal/index.tsx
+++ b/webapp/src/components/badge_modal/index.tsx
@@ -11,6 +11,7 @@ import {closeCreateBadgeModal, closeEditBadgeModal} from 'actions/actions';
 import {BadgeTypeDefinition} from 'types/badges';
 import Client from 'client/api';
 import {getServerErrorId} from 'utils/helpers';
+import CloseIcon from 'components/icons/close_icon';
 
 import TypeSelect from './type_select';
 
@@ -216,7 +217,7 @@ const BadgeModal: React.FC = () => {
                         className='close-btn'
                         onClick={handleClose}
                     >
-                        {'\u00D7'}
+                        <CloseIcon/>
                     </button>
                 </div>
                 <div className='BadgeModal__body'>
diff --git a/webapp/src/components/icons/close_icon.tsx b/webapp/src/components/icons/close_icon.tsx
new file mode 100644
index 0000000..25afdc9
--- /dev/null
+++ b/webapp/src/components/icons/close_icon.tsx
@@ -0,0 +1,29 @@
+import React from 'react';
+
+type Props = {
+    size?: number;
+}
+
+const CloseIcon: React.FC<Props> = ({size = 16}) => (
+    <svg
+        xmlns='http://www.w3.org/2000/svg'
+        width={size}
+        height={size}
+        viewBox='0 0 24 24'
+        fill='none'
+        stroke='currentColor'
+        strokeWidth='2'
+        strokeLinecap='round'
+        strokeLinejoin='round'
+    >
+        <path
+            stroke='none'
+            d='M0 0h24v24H0z'
+            fill='none'
+        />
+        <path d='M18 6l-12 12'/>
+        <path d='M6 6l12 12'/>
+    </svg>
+);
+
+export default CloseIcon;
diff --git a/webapp/src/components/icons/search_icon.tsx b/webapp/src/components/icons/search_icon.tsx
new file mode 100644
index 0000000..c1375ad
--- /dev/null
+++ b/webapp/src/components/icons/search_icon.tsx
@@ -0,0 +1,29 @@
+import React from 'react';
+
+type Props = {
+    size?: number;
+}
+
+const SearchIcon: React.FC<Props> = ({size = 18}) => (
+    <svg
+        xmlns='http://www.w3.org/2000/svg'
+        width={size}
+        height={size}
+        viewBox='0 0 24 24'
+        fill='none'
+        stroke='currentColor'
+        strokeWidth='2'
+        strokeLinecap='round'
+        strokeLinejoin='round'
+    >
+        <path
+            stroke='none'
+            d='M0 0h24v24H0z'
+            fill='none'
+        />
+        <path d='M3 10a7 7 0 1 0 14 0a7 7 0 1 0 -14 0'/>
+        <path d='M21 21l-6 -6'/>
+    </svg>
+);
+
+export default SearchIcon;
diff --git a/webapp/src/components/utils/tooltip_wrapper.tsx b/webapp/src/components/utils/tooltip_wrapper.tsx
index bdc8aab..049755d 100644
--- a/webapp/src/components/utils/tooltip_wrapper.tsx
+++ b/webapp/src/components/utils/tooltip_wrapper.tsx
@@ -1,4 +1,3 @@
-/* eslint-disable react/prop-types */
 import React, {ReactNode, useState, useRef, useEffect} from 'react';
 import ReactDOM from 'react-dom';
 
diff --git a/webapp/src/utils/helpers.ts b/webapp/src/utils/helpers.ts
index d3cd72b..ad9698f 100644
--- a/webapp/src/utils/helpers.ts
+++ b/webapp/src/utils/helpers.ts
@@ -1,3 +1,23 @@
+import {UserProfile} from 'mattermost-redux/types/users';
+
+export function getUserDisplayName(user: UserProfile): string {
+    if (user.nickname) {
+        return user.nickname;
+    }
+    if (user.first_name || user.last_name) {
+        return `${user.first_name} ${user.last_name}`.trim();
+    }
+    return user.username;
+}
+
+export function debounce<T extends(...args: any[]) => void>(fn: T, delay: number): T {
+    let timer: ReturnType<typeof setTimeout>;
+    return ((...args: any[]) => {
+        clearTimeout(timer);
+        timer = setTimeout(() => fn(...args), delay);
+    }) as unknown as T;
+}
+
 export function getServerErrorId(err: unknown): string {
     const msg = (err as {message?: string})?.message || '';
     try {