diff --git a/src/structures/Interaction.js b/src/structures/Interaction.js
index 7e54a64d040c..1f0567177172 100644
--- a/src/structures/Interaction.js
+++ b/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/typings/index.d.ts b/typings/index.d.ts
index ee6e9fa2bdf9..b6adc8950050 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -469,10 +469,9 @@ export type KeyedEnum<K, T> = {
   [Key in keyof K]: T | string;
 };
 
-export type EnumValueMapped<E extends KeyedEnum<T, number>, T extends Partial<Record<keyof E, unknown>>> = T &
-  {
-    [Key in keyof T as E[Key]]: T[Key];
-  };
+export type EnumValueMapped<E extends KeyedEnum<T, number>, T extends Partial<Record<keyof E, unknown>>> = T & {
+  [Key in keyof T as E[Key]]: T[Key];
+};
 
 export type MappedChannelCategoryTypes = EnumValueMapped<
   typeof ChannelTypes,
@@ -1330,6 +1329,8 @@ 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<'present'>;
   public inCachedGuild(): this is Interaction<'cached'>;
   public inRawGuild(): this is Interaction<'raw'>;
diff --git a/typings/index.test-d.ts b/typings/index.test-d.ts
index ccfbc3a3f243..51c99000187d 100644
--- a/typings/index.test-d.ts
+++ b/typings/index.test-d.ts
@@ -949,12 +949,17 @@ client.on('interactionCreate', async interaction => {
     expectAssignable<GuildMember>(interaction.member);
     expectNotType<CommandInteraction<'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.isContextMenu()) {