diff --git a/packages/discord.js/src/structures/GuildMember.js b/packages/discord.js/src/structures/GuildMember.js
index 6c428284cb85..3be4822e071c 100644
--- a/packages/discord.js/src/structures/GuildMember.js
+++ b/packages/discord.js/src/structures/GuildMember.js
@@ -133,6 +133,20 @@ class GuildMember extends Base {
     } else {
       this.flags ??= new GuildMemberFlagsBitField().freeze();
     }
+
+    if (data.avatar_decoration_data) {
+      /**
+       * The member avatar decoration's data
+       *
+       * @type {?AvatarDecorationData}
+       */
+      this.avatarDecorationData = {
+        asset: data.avatar_decoration_data.asset,
+        skuId: data.avatar_decoration_data.sku_id,
+      };
+    } else {
+      this.avatarDecorationData = null;
+    }
   }
 
   _clone() {
@@ -181,6 +195,15 @@ class GuildMember extends Base {
     return this.avatar && this.client.rest.cdn.guildMemberAvatar(this.guild.id, this.id, this.avatar, options);
   }
 
+  /**
+   * A link to the member's avatar decoration.
+   *
+   * @returns {?string}
+   */
+  avatarDecorationURL() {
+    return this.avatarDecorationData ? this.client.rest.cdn.avatarDecoration(this.avatarDecorationData.asset) : null;
+  }
+
   /**
    * A link to the member's banner.
    *
@@ -213,6 +236,16 @@ class GuildMember extends Base {
     return this.bannerURL(options) ?? this.user.bannerURL(options);
   }
 
+  /**
+   * A link to the member's guild avatar decoration if they have one.
+   * Otherwise, a link to their {@link User#avatarDecorationURL} will be returned.
+   *
+   * @returns {?string}
+   */
+  displayAvatarDecorationURL() {
+    return this.avatarDecorationURL() ?? this.user.avatarDecorationURL();
+  }
+
   /**
    * The time this member joined the guild
    *
@@ -560,7 +593,9 @@ class GuildMember extends Base {
       this.flags.bitfield === member.flags.bitfield &&
       (this._roles === member._roles ||
         (this._roles.length === member._roles.length &&
-          this._roles.every((role, index) => role === member._roles[index])))
+          this._roles.every((role, index) => role === member._roles[index]))) &&
+      this.avatarDecorationData?.asset === member.avatarDecorationData?.asset &&
+      this.avatarDecorationData?.skuId === member.avatarDecorationData?.skuId
     );
   }
 
@@ -587,6 +622,7 @@ class GuildMember extends Base {
     json.bannerURL = this.bannerURL();
     json.displayAvatarURL = this.displayAvatarURL();
     json.displayBannerURL = this.displayBannerURL();
+    json.avatarDecorationURL = this.avatarDecorationURL();
     return json;
   }
 }
diff --git a/packages/discord.js/typings/index.d.ts b/packages/discord.js/typings/index.d.ts
index ed2da0646c0f..5858f8e3f6b5 100644
--- a/packages/discord.js/typings/index.d.ts
+++ b/packages/discord.js/typings/index.d.ts
@@ -1596,6 +1596,7 @@ export class GuildMember extends Base {
   private constructor(client: Client<true>, data: unknown, guild: Guild);
   private readonly _roles: Snowflake[];
   public avatar: string | null;
+  public avatarDecorationData: AvatarDecorationData | null;
   public banner: string | null;
   public get bannable(): boolean;
   public get dmChannel(): DMChannel | null;
@@ -1623,6 +1624,7 @@ export class GuildMember extends Base {
   public user: User;
   public get voice(): VoiceState;
   public avatarURL(options?: ImageURLOptions): string | null;
+  public avatarDecorationURL(): string | null;
   public bannerURL(options?: ImageURLOptions): string | null;
   public ban(options?: BanOptions): Promise<void>;
   public disableCommunicationUntil(timeout: DateResolvable | null, reason?: string): Promise<GuildMember>;
@@ -1632,6 +1634,7 @@ export class GuildMember extends Base {
   public deleteDM(): Promise<DMChannel>;
   public displayAvatarURL(options?: ImageURLOptions): string;
   public displayBannerURL(options?: ImageURLOptions): string | null;
+  public displayAvatarDecorationURL(): string | null;
   public edit(options: GuildMemberEditOptions): Promise<GuildMember>;
   public isCommunicationDisabled(): this is GuildMember & {
     readonly communicationDisabledUntil: Date;
@@ -3534,7 +3537,7 @@ export class User extends Base {
   public get tag(): string;
   public username: string;
   public avatarURL(options?: ImageURLOptions): string | null;
-  public avatarDecorationURL(options?: BaseImageURLOptions): string | null;
+  public avatarDecorationURL(): string | null;
   public bannerURL(options?: ImageURLOptions): string | null | undefined;
   public createDM(force?: boolean): Promise<DMChannel>;
   public deleteDM(): Promise<DMChannel>;