diff --git a/packages/discord.js/src/structures/Interaction.js b/packages/discord.js/src/structures/Interaction.js
index 2c7739d9f2ee..de1f829ee80d 100644
--- a/packages/discord.js/src/structures/Interaction.js
+++ b/packages/discord.js/src/structures/Interaction.js
@@ -74,6 +74,18 @@ class Interaction extends Base {
      * @type {?Readonly<Permissions>}
      */
     this.memberPermissions = data.member?.permissions ? new Permissions(data.member.permissions).freeze() : null;
+
+    /**
+     * The locale of the user who invoked this interaction
+     * @type {string}
+     */
+    this.locale = data.locale;
+
+    /**
+     * The preferred locale from the guild this interaction was sent in
+     * @type {?string}
+     */
+    this.guildLocale = data.guild_locale ?? null;
   }
 
   /**
diff --git a/packages/discord.js/typings/index.d.ts b/packages/discord.js/typings/index.d.ts
index 9681022c7432..663800ecb59a 100644
--- a/packages/discord.js/typings/index.d.ts
+++ b/packages/discord.js/typings/index.d.ts
@@ -1316,6 +1316,8 @@ export class Interaction<Cached extends CacheType = CacheType> extends Base {
   public user: User;
   public version: number;
   public memberPermissions: CacheTypeReducer<Cached, Readonly<Permissions>>;
+  public locale: string;
+  public guildLocale: CacheTypeReducer<Cached, string, string, string>;
   public inGuild(): this is Interaction<'raw' | 'cached'>;
   public inCachedGuild(): this is Interaction<'cached'>;
   public inRawGuild(): this is Interaction<'raw'>;
diff --git a/packages/discord.js/typings/index.test-d.ts b/packages/discord.js/typings/index.test-d.ts
index f99106651fb6..62ac52cf2c04 100644
--- a/packages/discord.js/typings/index.test-d.ts
+++ b/packages/discord.js/typings/index.test-d.ts
@@ -955,12 +955,17 @@ client.on('interactionCreate', async interaction => {
     expectAssignable<GuildMember>(interaction.member);
     expectNotType<ChatInputCommandInteraction<'cached'>>(interaction);
     expectAssignable<Interaction>(interaction);
+    expectType<string>(interaction.guildLocale);
   } else if (interaction.inRawGuild()) {
     expectAssignable<APIInteractionGuildMember>(interaction.member);
     expectNotAssignable<Interaction<'cached'>>(interaction);
+    expectType<string>(interaction.guildLocale);
+  } else if (interaction.inGuild()) {
+    expectType<string>(interaction.guildLocale);
   } else {
     expectType<APIInteractionGuildMember | GuildMember | null>(interaction.member);
     expectNotAssignable<Interaction<'cached'>>(interaction);
+    expectType<string | null>(interaction.guildId);
   }
 
   if (interaction.isContextMenuCommand()) {