diff --git a/src/structures/GuildMember.js b/src/structures/GuildMember.js
index 0bc84414f5ba..d2ac4c24ec37 100644
--- a/src/structures/GuildMember.js
+++ b/src/structures/GuildMember.js
@@ -83,6 +83,15 @@ class GuildMember extends Base {
     }
 
     if ('nick' in data) this.nickname = data.nick;
+    if ('avatar' in data) {
+      /**
+       * The ID of the member's guild avatar
+       * @type {?string}
+       */
+      this.avatar = data.avatar;
+    } else if (typeof this.avatar !== 'string') {
+      this.avatar = null;
+    }
     if ('joined_at' in data) this.joinedTimestamp = new Date(data.joined_at).getTime();
     if ('premium_since' in data) {
       this.premiumSinceTimestamp = data.premium_since === null ? null : new Date(data.premium_since).getTime();
@@ -136,6 +145,26 @@ class GuildMember extends Base {
     return this.guild.voiceStates.cache.get(this.id) || new VoiceState(this.guild, { user_id: this.id });
   }
 
+  /**
+   * A link to the member's guild avatar.
+   * @param {ImageURLOptions} [options={}] Options for the Image URL
+   * @returns {?string}
+   */
+  avatarURL({ format, size, dynamic } = {}) {
+    if (!this.avatar) return null;
+    return this.client.rest.cdn.GuildMemberAvatar(this.guild.id, this.id, this.avatar, format, size, dynamic);
+  }
+
+  /**
+   * A link to the member's guild avatar if they have one.
+   * Otherwise, a link to their {@link User#displayAvatarURL} will be returned.
+   * @param {ImageURLOptions} [options={}] Options for the Image URL
+   * @returns {string}
+   */
+  displayAvatarURL(options) {
+    return this.avatarURL(options) || this.user.displayAvatarURL(options);
+  }
+
   /**
    * The time this member joined the guild
    * @type {?Date}
@@ -361,6 +390,7 @@ class GuildMember extends Base {
       this.lastMessageID === member.lastMessageID &&
       this.lastMessageChannelID === member.lastMessageChannelID &&
       this.nickname === member.nickname &&
+      this.avatar === member.avatar &&
       this.pending === member.pending &&
       (this._roles === member._roles ||
         (this._roles.length === member._roles.length && this._roles.every((role, i) => role === member._roles[i])))
@@ -379,7 +409,7 @@ class GuildMember extends Base {
   }
 
   toJSON() {
-    return super.toJSON({
+    const json = super.toJSON({
       guild: 'guildID',
       user: 'userID',
       displayName: true,
@@ -387,6 +417,9 @@ class GuildMember extends Base {
       lastMessageID: false,
       roles: true,
     });
+    json.avatarURL = this.avatarURL();
+    json.displayAvatarURL = this.displayAvatarURL();
+    return json;
   }
 
   // These are here only for documentation purposes - they are implemented by TextBasedChannel
diff --git a/src/util/Constants.js b/src/util/Constants.js
index e4e158bc0ea7..fe8df2bd4734 100644
--- a/src/util/Constants.js
+++ b/src/util/Constants.js
@@ -159,6 +159,10 @@ exports.Endpoints = {
         if (dynamic) format = hash.startsWith('a_') ? 'gif' : format;
         return makeImageUrl(`${root}/avatars/${userID}/${hash}`, { format, size });
       },
+      GuildMemberAvatar: (guildID, memberID, hash, format = 'webp', size, dynamic = false) => {
+        if (dynamic) format = hash.startsWith('a_') ? 'gif' : format;
+        return makeImageUrl(`${root}/guilds/${guildID}/users/${memberID}/avatars/${hash}`, { format, size });
+      },
       Banner: (guildID, hash, format = 'webp', size) =>
         makeImageUrl(`${root}/banners/${guildID}/${hash}`, { format, size }),
       Icon: (guildID, hash, format = 'webp', size, dynamic = false) => {
diff --git a/typings/index.d.ts b/typings/index.d.ts
index ec8f6f7e0617..af2d6b986289 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -548,6 +548,7 @@ declare module 'discord.js' {
   }
 
   type AllowedImageFormat = 'webp' | 'png' | 'jpg' | 'jpeg' | 'gif';
+  type AllowedImageSize = 16 | 32 | 64 | 128 | 256 | 512 | 1024 | 2048 | 4096;
 
   export const Constants: {
     Package: {
@@ -581,27 +582,59 @@ declare module 'discord.js' {
         Avatar: (
           userID: Snowflake | number,
           hash: string,
-          format: 'default' | AllowedImageFormat,
-          size: number,
+          format: AllowedImageFormat,
+          size: AllowedImageSize,
+        ) => string;
+        GuildMemberAvatar: (
+          guildId: Snowflake | number,
+          userId: Snowflake | number,
+          hash: string,
+          format: AllowedImageFormat,
+          size: AllowedImageSize,
+        ) => string;
+        Banner: (
+          guildID: Snowflake | number,
+          hash: string,
+          format: AllowedImageFormat,
+          size: AllowedImageSize,
         ) => string;
-        Banner: (guildID: Snowflake | number, hash: string, format: AllowedImageFormat, size: number) => string;
-        Icon: (
+        Icon: (userID: Snowflake | number, hash: string, format: AllowedImageFormat, size: AllowedImageSize) => string;
+        AppIcon: (
           userID: Snowflake | number,
           hash: string,
-          format: 'default' | AllowedImageFormat,
-          size: number,
+          format: AllowedImageFormat,
+          size: AllowedImageSize,
+        ) => string;
+        AppAsset: (
+          userID: Snowflake | number,
+          hash: string,
+          format: AllowedImageFormat,
+          size: AllowedImageSize,
+        ) => string;
+        GDMIcon: (
+          userID: Snowflake | number,
+          hash: string,
+          format: AllowedImageFormat,
+          size: AllowedImageSize,
+        ) => string;
+        Splash: (
+          guildID: Snowflake | number,
+          hash: string,
+          format: AllowedImageFormat,
+          size: AllowedImageSize,
         ) => string;
-        AppIcon: (userID: Snowflake | number, hash: string, format: AllowedImageFormat, size: number) => string;
-        AppAsset: (userID: Snowflake | number, hash: string, format: AllowedImageFormat, size: number) => string;
-        GDMIcon: (userID: Snowflake | number, hash: string, format: AllowedImageFormat, size: number) => string;
-        Splash: (guildID: Snowflake | number, hash: string, format: AllowedImageFormat, size: number) => string;
         DiscoverySplash: (
           guildID: Snowflake | number,
           hash: string,
           format: AllowedImageFormat,
-          size: number,
+          size: AllowedImageSize,
+        ) => string;
+        TeamIcon: (
+          teamID: Snowflake | number,
+          hash: string,
+          format: AllowedImageFormat,
+          size: AllowedImageSize,
         ) => string;
-        TeamIcon: (teamID: Snowflake | number, hash: string, format: AllowedImageFormat, size: number) => string;
       };
     };
     WSCodes: {
@@ -1037,6 +1070,7 @@ declare module 'discord.js' {
     constructor(client: Client, data: unknown, guild: Guild);
     public readonly bannable: boolean;
     public deleted: boolean;
+    public avatar: string | null;
     public readonly displayColor: number;
     public readonly displayHexColor: string;
     public readonly displayName: string;
@@ -1057,6 +1091,8 @@ declare module 'discord.js' {
     public readonly roles: GuildMemberRoleManager;
     public user: User;
     public readonly voice: VoiceState;
+    public avatarURL(options?: ImageURLOptions): string | null;
+    public displayAvatarURL(options?: ImageURLOptions): string;
     public ban(options?: BanOptions): Promise<GuildMember>;
     public fetch(force?: boolean): Promise<GuildMember>;
     public createDM(force?: boolean): Promise<DMChannel>;