diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0581466d7c..599bd463fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,7 @@
 - Feat: モデレーターがユーザーのアイコンもしくはバナー画像を未設定状態にできる機能を追加 (cherry-pick from https://github.com/TeamNijimiss/misskey/commit/e0eb5a752f6e5616d6312bb7c9790302f9dbff83)
 - Feat: TL上からノートが見えなくなるワードミュートであるハードミュートを追加
 - Enhance: アイコンデコレーションを複数設定できるように
+- Enhance: アイコンデコレーションの位置を微調整できるように
 - Fix: MFM `$[unixtime ]` に不正な値を入力した際に発生する各種エラーを修正
 
 ### Client
diff --git a/packages/backend/src/core/entities/UserEntityService.ts b/packages/backend/src/core/entities/UserEntityService.ts
index 917f4e06d0..fb7aa0c244 100644
--- a/packages/backend/src/core/entities/UserEntityService.ts
+++ b/packages/backend/src/core/entities/UserEntityService.ts
@@ -362,6 +362,8 @@ export class UserEntityService implements OnModuleInit {
 				id: ud.id,
 				angle: ud.angle || undefined,
 				flipH: ud.flipH || undefined,
+				offsetX: ud.offsetX || undefined,
+				offsetY: ud.offsetY || undefined,
 				url: decorations.find(d => d.id === ud.id)!.url,
 			}))) : [],
 			isBot: user.isBot,
diff --git a/packages/backend/src/models/User.ts b/packages/backend/src/models/User.ts
index c3762fcd3e..219497a125 100644
--- a/packages/backend/src/models/User.ts
+++ b/packages/backend/src/models/User.ts
@@ -143,8 +143,10 @@ export class MiUser {
 	})
 	public avatarDecorations: {
 		id: string;
-		angle: number;
-		flipH: boolean;
+		angle?: number;
+		flipH?: boolean;
+		offsetX?: number;
+		offsetY?: number;
 	}[];
 
 	@Index()
diff --git a/packages/backend/src/server/api/endpoints/i/update.ts b/packages/backend/src/server/api/endpoints/i/update.ts
index 399e6b88cb..a56f50115b 100644
--- a/packages/backend/src/server/api/endpoints/i/update.ts
+++ b/packages/backend/src/server/api/endpoints/i/update.ts
@@ -143,6 +143,8 @@ export const paramDef = {
 				id: { type: 'string', format: 'misskey:id' },
 				angle: { type: 'number', nullable: true, maximum: 0.5, minimum: -0.5 },
 				flipH: { type: 'boolean', nullable: true },
+				offsetX: { type: 'number', nullable: true, maximum: 0.25, minimum: -0.25 },
+				offsetY: { type: 'number', nullable: true, maximum: 0.25, minimum: -0.25 },
 			},
 			required: ['id'],
 		} },
@@ -341,6 +343,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 					id: d.id,
 					angle: d.angle ?? 0,
 					flipH: d.flipH ?? false,
+					offsetX: d.offsetX ?? 0,
+					offsetY: d.offsetY ?? 0,
 				}));
 			}
 
diff --git a/packages/frontend/src/components/global/MkAvatar.vue b/packages/frontend/src/components/global/MkAvatar.vue
index 9d13c03290..af5b6e44f5 100644
--- a/packages/frontend/src/components/global/MkAvatar.vue
+++ b/packages/frontend/src/components/global/MkAvatar.vue
@@ -31,6 +31,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			:style="{
 				rotate: getDecorationAngle(decoration),
 				scale: getDecorationScale(decoration),
+				translate: getDecorationOffset(decoration),
 			}"
 			alt=""
 		>
@@ -99,6 +100,12 @@ function getDecorationScale(decoration: Omit<Misskey.entities.UserDetailed['avat
 	return scaleX === 1 ? undefined : `${scaleX} 1`;
 }
 
+function getDecorationOffset(decoration: Omit<Misskey.entities.UserDetailed['avatarDecorations'][number], 'id'>) {
+	const offsetX = decoration.offsetX ?? 0;
+	const offsetY = decoration.offsetY ?? 0;
+	return offsetX === 0 && offsetY === 0 ? undefined : `${offsetX * 100}% ${offsetY * 100}%`;
+}
+
 const color = ref<string | undefined>();
 
 watch(() => props.user.avatarBlurhash, () => {
diff --git a/packages/frontend/src/pages/settings/profile.avatar-decoration.decoration.vue b/packages/frontend/src/pages/settings/profile.avatar-decoration.decoration.vue
index c113868238..9c95b5547e 100644
--- a/packages/frontend/src/pages/settings/profile.avatar-decoration.decoration.vue
+++ b/packages/frontend/src/pages/settings/profile.avatar-decoration.decoration.vue
@@ -9,7 +9,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 	@click="emit('click')"
 >
 	<div :class="$style.name"><MkCondensedLine :minScale="0.5">{{ decoration.name }}</MkCondensedLine></div>
-	<MkAvatar style="width: 60px; height: 60px;" :user="$i" :decorations="[{ url: decoration.url, angle, flipH }]" forceShowDecoration/>
+	<MkAvatar style="width: 60px; height: 60px;" :user="$i" :decorations="[{ url: decoration.url, angle, flipH, offsetX, offsetY }]" forceShowDecoration/>
 	<i v-if="decoration.roleIdsThatCanBeUsedThisDecoration.length > 0 && !$i.roles.some(r => decoration.roleIdsThatCanBeUsedThisDecoration.includes(r.id))" :class="$style.lock" class="ti ti-lock"></i>
 </div>
 </template>
@@ -28,6 +28,8 @@ const props = defineProps<{
 	};
 	angle?: number;
 	flipH?: boolean;
+	offsetX?: number;
+	offsetY?: number;
 }>();
 
 const emit = defineEmits<{
diff --git a/packages/frontend/src/pages/settings/profile.avatar-decoration.dialog.vue b/packages/frontend/src/pages/settings/profile.avatar-decoration.dialog.vue
index 26cacf3c37..77e6b28fad 100644
--- a/packages/frontend/src/pages/settings/profile.avatar-decoration.dialog.vue
+++ b/packages/frontend/src/pages/settings/profile.avatar-decoration.dialog.vue
@@ -23,6 +23,12 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<MkRange v-model="angle" continuousUpdate :min="-0.5" :max="0.5" :step="0.025" :textConverter="(v) => `${Math.floor(v * 360)}°`">
 					<template #label>{{ i18n.ts.angle }}</template>
 				</MkRange>
+				<MkRange v-model="offsetX" continuousUpdate :min="-0.25" :max="0.25" :step="0.025" :textConverter="(v) => `${Math.floor(v * 100)}%`">
+					<template #label>X {{ i18n.ts.position }}</template>
+				</MkRange>
+				<MkRange v-model="offsetY" continuousUpdate :min="-0.25" :max="0.25" :step="0.025" :textConverter="(v) => `${Math.floor(v * 100)}%`">
+					<template #label>Y {{ i18n.ts.position }}</template>
+				</MkRange>
 				<MkSwitch v-model="flipH">
 					<template #label>{{ i18n.ts.flip }}</template>
 				</MkSwitch>
@@ -64,10 +70,14 @@ const emit = defineEmits<{
 	(ev: 'attach', payload: {
 		angle: number;
 		flipH: boolean;
+		offsetX: number;
+		offsetY: number;
 	}): void;
 	(ev: 'update', payload: {
 		angle: number;
 		flipH: boolean;
+		offsetX: number;
+		offsetY: number;
 	}): void;
 	(ev: 'detach'): void;
 }>();
@@ -76,6 +86,8 @@ const dialog = shallowRef<InstanceType<typeof MkModalWindow>>();
 const exceeded = computed(() => ($i.policies.avatarDecorationLimit - $i.avatarDecorations.length) <= 0);
 const angle = ref((props.usingIndex != null ? $i.avatarDecorations[props.usingIndex].angle : null) ?? 0);
 const flipH = ref((props.usingIndex != null ? $i.avatarDecorations[props.usingIndex].flipH : null) ?? false);
+const offsetX = ref((props.usingIndex != null ? $i.avatarDecorations[props.usingIndex].offsetX : null) ?? 0);
+const offsetY = ref((props.usingIndex != null ? $i.avatarDecorations[props.usingIndex].offsetY : null) ?? 0);
 
 const decorationsForPreview = computed(() => {
 	const decoration = {
@@ -83,6 +95,8 @@ const decorationsForPreview = computed(() => {
 		url: props.decoration.url,
 		angle: angle.value,
 		flipH: flipH.value,
+		offsetX: offsetX.value,
+		offsetY: offsetY.value,
 	};
 	const decorations = [...$i.avatarDecorations];
 	if (props.usingIndex != null) {
@@ -101,6 +115,8 @@ async function update() {
 	emit('update', {
 		angle: angle.value,
 		flipH: flipH.value,
+		offsetX: offsetX.value,
+		offsetY: offsetY.value,
 	});
 	dialog.value.close();
 }
@@ -109,6 +125,8 @@ async function attach() {
 	emit('attach', {
 		angle: angle.value,
 		flipH: flipH.value,
+		offsetX: offsetX.value,
+		offsetY: offsetY.value,
 	});
 	dialog.value.close();
 }
diff --git a/packages/frontend/src/pages/settings/profile.avatar-decoration.vue b/packages/frontend/src/pages/settings/profile.avatar-decoration.vue
index bfef6e0325..8579acfed8 100644
--- a/packages/frontend/src/pages/settings/profile.avatar-decoration.vue
+++ b/packages/frontend/src/pages/settings/profile.avatar-decoration.vue
@@ -16,6 +16,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 				:decoration="avatarDecorations.find(d => d.id === avatarDecoration.id)"
 				:angle="avatarDecoration.angle"
 				:flipH="avatarDecoration.flipH"
+				:offsetX="avatarDecoration.offsetX"
+				:offsetY="avatarDecoration.offsetY"
 				:active="true"
 				@click="openDecoration(avatarDecoration, i)"
 			/>
@@ -66,6 +68,8 @@ function openDecoration(avatarDecoration, index?: number) {
 				id: avatarDecoration.id,
 				angle: payload.angle,
 				flipH: payload.flipH,
+				offsetX: payload.offsetX,
+				offsetY: payload.offsetY,
 			};
 			const update = [...$i.avatarDecorations, decoration];
 			await os.apiWithDialog('i/update', {
@@ -78,6 +82,8 @@ function openDecoration(avatarDecoration, index?: number) {
 				id: avatarDecoration.id,
 				angle: payload.angle,
 				flipH: payload.flipH,
+				offsetX: payload.offsetX,
+				offsetY: payload.offsetY,
 			};
 			const update = [...$i.avatarDecorations];
 			update[index] = decoration;