diff --git a/src/plugins/customDmNotificationSound/README.md b/src/plugins/customDmNotificationSound/README.md
new file mode 100644
index 0000000000..7216aaa2b5
--- /dev/null
+++ b/src/plugins/customDmNotificationSound/README.md
@@ -0,0 +1,7 @@
+# CustomDMNotificationSound
+
+Set custom direct message notification sounds for specific users.
+
+Right click a user and choose **Add Custom DM Sound** to select an audio file for that user. Users with configured sounds can be changed, previewed, or removed from the same context menu, or managed from the plugin settings.
+
+Audio files are stored in Vencord settings as data URLs. The plugin supports up to 10 users with a 512 KB limit per audio file.
diff --git a/src/plugins/customDmNotificationSound/index.tsx b/src/plugins/customDmNotificationSound/index.tsx
new file mode 100644
index 0000000000..a5872bba7a
--- /dev/null
+++ b/src/plugins/customDmNotificationSound/index.tsx
@@ -0,0 +1,330 @@
+/*
+ * Vencord, a Discord client mod
+ * Copyright (c) 2026 Vendicated and contributors
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+import { findGroupChildrenByChildId, NavContextMenuPatchCallback } from "@api/ContextMenu";
+import { definePluginSettings } from "@api/Settings";
+import { CloudUploadIcon, DeleteIcon } from "@components/Icons";
+import { Devs } from "@utils/constants";
+import { Margins } from "@utils/margins";
+import definePlugin, { makeRange, OptionType } from "@utils/types";
+import { chooseFile } from "@utils/web";
+import { Channel, MessageJSON, User } from "@vencord/discord-types";
+import { ChannelType } from "@vencord/discord-types/enums";
+import { Button, ChannelStore, Forms, Menu, showToast, Toasts, UserStore } from "@webpack/common";
+
+const MAX_CUSTOM_SOUNDS = 10;
+const MAX_SOUND_FILE_SIZE = 512 * 1024;
+
+const markedMessages = new Set<string>();
+let currentAudio: HTMLAudioElement | undefined;
+
+interface CustomSound {
+    soundData: string;
+    fileName: string;
+}
+
+type CustomSounds = Record<string, CustomSound>;
+
+function readFileAsDataUrl(file: File) {
+    return new Promise<string>((resolve, reject) => {
+        const reader = new FileReader();
+        reader.onload = () => resolve(reader.result as string);
+        reader.onerror = reject;
+        reader.readAsDataURL(file);
+    });
+}
+
+function playSound(src: string, volume: number) {
+    currentAudio?.pause();
+
+    const audio = new Audio(src);
+    audio.volume = Math.min(1, Math.max(0, volume));
+    currentAudio = audio;
+
+    void audio.play().catch(error => {
+        showToast(`Failed to play custom notification sound: ${error.message}`, Toasts.Type.FAILURE);
+    });
+}
+
+function getErrorMessage(error: unknown) {
+    return error instanceof Error ? error.message : String(error);
+}
+
+function cloneCustomSounds(customSounds: CustomSounds) {
+    return Object.fromEntries(
+        Object.entries(customSounds).map(([userId, sound]) => [
+            userId,
+            {
+                soundData: sound.soundData,
+                fileName: sound.fileName
+            }
+        ])
+    ) as CustomSounds;
+}
+
+async function chooseSound() {
+    const file = await chooseFile("audio/*");
+    if (!file) return null;
+
+    if (file.size > MAX_SOUND_FILE_SIZE) {
+        showToast("Audio file is too large. Please choose a file under 512 KB.", Toasts.Type.FAILURE);
+        return null;
+    }
+
+    return {
+        soundData: await readFileAsDataUrl(file),
+        fileName: file.name
+    };
+}
+
+async function addOrChangeSound(user: User) {
+    try {
+        if (!settings.store.customSounds[user.id] && Object.keys(settings.store.customSounds).length >= MAX_CUSTOM_SOUNDS) {
+            showToast(`You can only add up to ${MAX_CUSTOM_SOUNDS} custom DM sounds.`, Toasts.Type.FAILURE);
+            return;
+        }
+
+        const sound = await chooseSound();
+        if (!sound) return;
+
+        settings.store.customSounds = {
+            ...cloneCustomSounds(settings.store.customSounds),
+            [user.id]: sound
+        };
+
+        showToast(`Selected ${sound.fileName} for ${user.username}`, Toasts.Type.SUCCESS);
+    } catch (error) {
+        showToast(`Failed to load audio file: ${getErrorMessage(error)}`, Toasts.Type.FAILURE);
+    }
+}
+
+function removeSound(userId: string) {
+    const customSounds = cloneCustomSounds(settings.store.customSounds);
+    delete customSounds[userId];
+    settings.store.customSounds = customSounds;
+}
+
+function CustomSoundsManager({ setValue }: { setValue(value: CustomSounds): void; }) {
+    const { customSounds } = settings.use(["customSounds"]);
+    const entries = Object.entries(customSounds);
+
+    function updateSound(userId: string, sound: CustomSound) {
+        setValue({
+            ...cloneCustomSounds(customSounds),
+            [userId]: sound
+        });
+    }
+
+    function remove(userId: string) {
+        const nextCustomSounds = cloneCustomSounds(customSounds);
+        delete nextCustomSounds[userId];
+        setValue(nextCustomSounds);
+        currentAudio?.pause();
+    }
+
+    return (
+        <div className={Margins.top8}>
+            <Forms.FormTitle>Custom User Sounds</Forms.FormTitle>
+            {entries.length === 0 ? (
+                <Forms.FormText>Right click a user and choose Add Custom DM Sound to pick a sound for them.</Forms.FormText>
+            ) : entries.map(([userId, sound]) => {
+                const user = UserStore.getUser(userId);
+
+                return (
+                    <div
+                        key={userId}
+                        style={{ display: "flex", gap: "8px", flexWrap: "wrap", alignItems: "center", marginBottom: 8 }}
+                    >
+                        <Forms.FormText style={{ minWidth: 180, flex: "1 1 180px" }}>
+                            {user?.username ?? userId} - {sound.fileName}
+                        </Forms.FormText>
+                        <Button
+                            onClick={async () => {
+                                try {
+                                    const nextSound = await chooseSound();
+                                    if (!nextSound) return;
+
+                                    updateSound(userId, nextSound);
+                                    showToast(`Selected ${nextSound.fileName}`, Toasts.Type.SUCCESS);
+                                } catch (error) {
+                                    showToast(`Failed to load audio file: ${getErrorMessage(error)}`, Toasts.Type.FAILURE);
+                                }
+                            }}
+                        >
+                            <CloudUploadIcon height={16} width={16} />
+                            Change
+                        </Button>
+                        <Button onClick={() => playSound(sound.soundData, settings.store.volume / 100)}>
+                            Preview
+                        </Button>
+                        <Button
+                            color={Button.Colors.RED}
+                            onClick={() => remove(userId)}
+                        >
+                            <DeleteIcon height={16} width={16} />
+                            Remove
+                        </Button>
+                    </div>
+                );
+            })}
+            <Forms.FormText className={Margins.top8}>
+                Pick audio files Discord can play. Files are stored in Vencord settings as data URLs. Limit: {MAX_CUSTOM_SOUNDS} users, 512 KB per file.
+            </Forms.FormText>
+        </div>
+    );
+}
+
+const settings = definePluginSettings({
+    customSounds: {
+        type: OptionType.COMPONENT,
+        component: CustomSoundsManager,
+        default: {} as CustomSounds
+    },
+    volume: {
+        type: OptionType.SLIDER,
+        description: "Custom sound volume",
+        markers: makeRange(0, 100, 10),
+        default: 100,
+        stickToMarkers: false
+    }
+}).withPrivateSettings<{
+    userId?: string;
+    soundData?: string;
+}>();
+
+interface UserContextProps {
+    user?: User;
+}
+
+interface GroupDmContextProps {
+    channel?: Channel;
+}
+
+function buildUserSoundMenuItem(user: User) {
+    const customSound = settings.store.customSounds[user.id];
+
+    return (
+        <Menu.MenuItem
+            id={`vc-custom-dm-notification-sound-${user.id}`}
+            label={customSound ? `${user.username}: Custom DM Sound` : `Add Custom DM Sound for ${user.username}`}
+            action={customSound ? undefined : () => void addOrChangeSound(user)}
+        >
+            {customSound && (
+                <>
+                    <Menu.MenuItem
+                        id={`vc-custom-dm-notification-sound-change-${user.id}`}
+                        label="Change Sound"
+                        action={() => void addOrChangeSound(user)}
+                    />
+                    <Menu.MenuItem
+                        id={`vc-custom-dm-notification-sound-preview-${user.id}`}
+                        label="Preview Sound"
+                        action={() => playSound(customSound.soundData, settings.store.volume / 100)}
+                    />
+                    <Menu.MenuItem
+                        id={`vc-custom-dm-notification-sound-remove-${user.id}`}
+                        label="Remove Sound"
+                        color="danger"
+                        action={() => {
+                            removeSound(user.id);
+                            showToast(`Removed custom DM sound for ${user.username}`, Toasts.Type.SUCCESS);
+                        }}
+                    />
+                </>
+            )}
+        </Menu.MenuItem>
+    );
+}
+
+const userContextPatch: NavContextMenuPatchCallback = (children, { user }: UserContextProps) => {
+    if (!user || user.id === UserStore.getCurrentUser().id) return;
+
+    children.push(buildUserSoundMenuItem(user));
+};
+
+const groupDmContextPatch: NavContextMenuPatchCallback = (children, { channel }: GroupDmContextProps) => {
+    if (!channel || channel.type !== ChannelType.GROUP_DM) return;
+
+    const currentUserId = UserStore.getCurrentUser().id;
+    const recipients = channel.recipients
+        .filter(userId => userId !== currentUserId)
+        .map(userId => UserStore.getUser(userId))
+        .filter(Boolean);
+
+    if (!recipients.length) return;
+
+    const container = findGroupChildrenByChildId("leave-channel", children) ?? children;
+    container.unshift(
+        <Menu.MenuItem
+            id="vc-custom-dm-notification-sound"
+            label="Custom DM Sounds"
+        >
+            {recipients.map(user => buildUserSoundMenuItem(user))}
+        </Menu.MenuItem>
+    );
+};
+
+export default definePlugin({
+    name: "CustomDMNotificationSound",
+    description: "Replaces Discord's default DM notification sound for marked users with selected custom sounds",
+    tags: ["Notifications", "Customisation"],
+    authors: [Devs.Xlite],
+    settings,
+
+    start() {
+        if (!settings.store.userId || !settings.store.soundData || settings.store.customSounds[settings.store.userId]) return;
+
+        settings.store.customSounds = {
+            ...cloneCustomSounds(settings.store.customSounds),
+            [settings.store.userId]: {
+                soundData: settings.store.soundData,
+                fileName: "Migrated custom sound"
+            }
+        };
+        delete settings.store.userId;
+        delete settings.store.soundData;
+    },
+
+    stop() {
+        currentAudio?.pause();
+        currentAudio = undefined;
+        markedMessages.clear();
+    },
+
+    contextMenus: {
+        "user-context": userContextPatch,
+        "user-profile-actions": userContextPatch,
+        "user-profile-overflow-menu": userContextPatch,
+        "gdm-context": groupDmContextPatch
+    },
+
+    patches: [
+        {
+            find: ".getDesktopType()===",
+            replacement: {
+                match: /sound:(\i\?\i:void 0),volume:(\i),onClick/,
+                replace: "sound:$self.getSound($1,arguments[0]?.message,$2),volume:$2,onClick"
+            }
+        }
+    ],
+
+    getSound(defaultSound: unknown, message?: MessageJSON, volume = 1) {
+        const authorId = message?.author?.id;
+        const customSound = authorId ? settings.store.customSounds[authorId] : null;
+        if (!customSound?.soundData || !message?.id) return defaultSound;
+
+        const channel = ChannelStore.getChannel(message.channel_id);
+        if (channel?.type !== ChannelType.DM && channel?.type !== ChannelType.GROUP_DM) return defaultSound;
+
+        if (!markedMessages.has(message.id)) {
+            if (markedMessages.size > 500) markedMessages.clear();
+            markedMessages.add(message.id);
+            playSound(customSound.soundData, settings.store.volume / 100 * volume);
+        }
+
+        return undefined;
+    }
+});
diff --git a/src/utils/constants.ts b/src/utils/constants.ts
index 61550c00a0..249a630828 100644
--- a/src/utils/constants.ts
+++ b/src/utils/constants.ts
@@ -132,6 +132,10 @@ export const Devs = /* #__PURE__*/ Object.freeze({
         name: "Xinto",
         id: 423915768191647755n
     },
+    Xlite: {
+        name: "Xlite",
+        id: 267340529895866369n
+    },
     JacobTm: {
         name: "Jacob.Tm",
         id: 302872992097107991n