diff --git a/packages/core/__tests__/services/assembler-query.service.spec.ts b/packages/core/__tests__/services/assembler-query.service.spec.ts
index db0352a68..dc1718f4a 100644
--- a/packages/core/__tests__/services/assembler-query.service.spec.ts
+++ b/packages/core/__tests__/services/assembler-query.service.spec.ts
@@ -362,6 +362,33 @@ describe('AssemblerQueryService', () => {
     });
   });
 
+  describe('setRelations', () => {
+    it('should transform the results for a single entity', () => {
+      const mockQueryService = mock<QueryService<TestEntity>>();
+      const assemblerService = new AssemblerQueryService(new TestAssembler(), instance(mockQueryService));
+      when(mockQueryService.setRelations('test', 1, deepEqual([2]), undefined)).thenResolve({
+        bar: 'baz',
+      });
+
+      return expect(assemblerService.setRelations('test', 1, [2])).resolves.toEqual({ foo: 'baz' });
+    });
+    it('should transform the options and results for a single entity', () => {
+      const mockQueryService = mock<QueryService<TestEntity>>();
+      const assemblerService = new AssemblerQueryService(new TestAssembler(), instance(mockQueryService));
+      when(
+        mockQueryService.setRelations('test', 1, deepEqual([2]), objectContaining({ filter: { bar: { eq: 'bar' } } })),
+      ).thenResolve({
+        bar: 'baz',
+      });
+
+      return expect(
+        assemblerService.setRelations('test', 1, [2], {
+          filter: { foo: { eq: 'bar' } },
+        }),
+      ).resolves.toEqual({ foo: 'baz' });
+    });
+  });
+
   describe('removeRelations', () => {
     it('should transform the results for a single entity', () => {
       const mockQueryService = mock<QueryService<TestEntity>>();
diff --git a/packages/core/__tests__/services/noop-query.service.spec.ts b/packages/core/__tests__/services/noop-query.service.spec.ts
index c8545cd52..c58999a1f 100644
--- a/packages/core/__tests__/services/noop-query.service.spec.ts
+++ b/packages/core/__tests__/services/noop-query.service.spec.ts
@@ -12,22 +12,31 @@ describe('NoOpQueryService', () => {
     DeepPartial<TestType>,
     DeepPartial<TestType>
   >();
+
   it('should throw a NotImplementedException when calling addRelations', () =>
     expect(instance.addRelations('test', 1, [1, 2, 3])).rejects.toThrow('addRelations is not implemented'));
+
   it('should throw a NotImplementedException when calling createMany', () =>
     expect(instance.createMany([{ foo: 'bar' }])).rejects.toThrow('createMany is not implemented'));
+
   it('should throw a NotImplementedException when calling createOne', () =>
     expect(instance.createOne({ foo: 'bar' })).rejects.toThrow('createOne is not implemented'));
+
   it('should throw a NotImplementedException when calling deleteMany', () =>
     expect(instance.deleteMany({ foo: { eq: 'bar' } })).rejects.toThrow('deleteMany is not implemented'));
+
   it('should throw a NotImplementedException when calling deleteOne', () =>
     expect(instance.deleteOne(1)).rejects.toThrow('deleteOne is not implemented'));
+
   it('should throw a NotImplementedException when calling findById', () =>
     expect(instance.findById(1)).rejects.toThrow('findById is not implemented'));
+
   it('should throw a NotImplementedException when calling findRelation', () =>
     expect(instance.findRelation(TestType, 'test', new TestType())).rejects.toThrow('findRelation is not implemented'));
+
   it('should throw a NotImplementedException when calling getById', () =>
     expect(instance.getById(1)).rejects.toThrow('getById is not implemented'));
+
   it('should throw a NotImplementedException when calling query', () =>
     expect(instance.query({})).rejects.toThrow('query is not implemented'));
 
@@ -36,22 +45,32 @@ describe('NoOpQueryService', () => {
 
   it('should throw a NotImplementedException when calling count', () =>
     expect(instance.count({})).rejects.toThrow('count is not implemented'));
+
   it('should throw a NotImplementedException when calling queryRelations', () =>
     expect(instance.queryRelations(TestType, 'test', new TestType(), {})).rejects.toThrow(
       'queryRelations is not implemented',
     ));
+
   it('should throw a NotImplementedException when calling countRelations', () =>
     expect(instance.countRelations(TestType, 'test', new TestType(), {})).rejects.toThrow(
       'countRelations is not implemented',
     ));
+
   it('should throw a NotImplementedException when calling removeRelation', () =>
     expect(instance.removeRelation('test', 1, 2)).rejects.toThrow('removeRelation is not implemented'));
+
   it('should throw a NotImplementedException when calling removeRelations', () =>
     expect(instance.removeRelations('test', 1, [1, 2, 3])).rejects.toThrow('removeRelations is not implemented'));
+
   it('should throw a NotImplementedException when calling setRelation', () =>
     expect(instance.setRelation('test', 1, 1)).rejects.toThrow('setRelation is not implemented'));
+
+  it('should throw a NotImplementedException when calling setRelations', () =>
+    expect(instance.setRelations('test', 1, [1])).rejects.toThrow('setRelations is not implemented'));
+
   it('should throw a NotImplementedException when calling updateMany', () =>
     expect(instance.updateMany({ foo: 'bar' }, {})).rejects.toThrow('updateMany is not implemented'));
+
   it('should throw a NotImplementedException when calling updateOne', () =>
     expect(instance.updateOne(1, { foo: 'bar' })).rejects.toThrow('updateOne is not implemented'));
 
diff --git a/packages/core/__tests__/services/proxy-query.service.spec.ts b/packages/core/__tests__/services/proxy-query.service.spec.ts
index a6888612c..270269128 100644
--- a/packages/core/__tests__/services/proxy-query.service.spec.ts
+++ b/packages/core/__tests__/services/proxy-query.service.spec.ts
@@ -169,6 +169,14 @@ describe('ProxyQueryService', () => {
     when(mockQueryService.setRelation(relationName, id, relationId, undefined)).thenResolve(result);
     return expect(queryService.setRelation(relationName, id, relationId)).resolves.toBe(result);
   });
+  it('should proxy to the underlying service when calling setRelations', () => {
+    const relationName = 'test';
+    const id = 1;
+    const relationIds = [2];
+    const result = { foo: 'bar' };
+    when(mockQueryService.setRelations(relationName, id, relationIds, undefined)).thenResolve(result);
+    return expect(queryService.setRelations(relationName, id, relationIds)).resolves.toBe(result);
+  });
   it('should proxy to the underlying service when calling updateMany', () => {
     const update = { foo: 'bar' };
     const filter = {};
diff --git a/packages/core/__tests__/services/relation-query.service.spec.ts b/packages/core/__tests__/services/relation-query.service.spec.ts
index c9e3137b2..f0e492b64 100644
--- a/packages/core/__tests__/services/relation-query.service.spec.ts
+++ b/packages/core/__tests__/services/relation-query.service.spec.ts
@@ -261,4 +261,14 @@ describe('RelationQueryService', () => {
       return expect(queryService.setRelation(relationName, id, relationId)).resolves.toBe(result);
     });
   });
+  describe('#setRelations', () => {
+    it('should proxy to the underlying service when calling setRelations', () => {
+      const relationName = 'test';
+      const id = 1;
+      const relationIds = [2];
+      const result = { foo: 'bar' };
+      when(mockQueryService.setRelations(relationName, id, relationIds, undefined)).thenResolve(result);
+      return expect(queryService.setRelations(relationName, id, relationIds)).resolves.toBe(result);
+    });
+  });
 });
diff --git a/packages/core/src/services/assembler-query.service.ts b/packages/core/src/services/assembler-query.service.ts
index b096ebb92..d4159cd01 100644
--- a/packages/core/src/services/assembler-query.service.ts
+++ b/packages/core/src/services/assembler-query.service.ts
@@ -227,6 +227,17 @@ export class AssemblerQueryService<DTO, Entity, C = DeepPartial<DTO>, CE = DeepP
     );
   }
 
+  setRelations<Relation>(
+    relationName: string,
+    id: string | number,
+    relationIds: (string | number)[],
+    opts?: ModifyRelationOptions<DTO, Relation>,
+  ): Promise<DTO> {
+    return this.assembler.convertAsyncToDTO(
+      this.queryService.setRelations(relationName, id, relationIds, this.convertModifyRelationsOptions(opts)),
+    );
+  }
+
   setRelation<Relation>(
     relationName: string,
     id: string | number,
diff --git a/packages/core/src/services/noop-query.service.ts b/packages/core/src/services/noop-query.service.ts
index f697f29f5..392d21f09 100644
--- a/packages/core/src/services/noop-query.service.ts
+++ b/packages/core/src/services/noop-query.service.ts
@@ -160,6 +160,15 @@ export class NoOpQueryService<DTO, C = DeepPartial<DTO>, U = DeepPartial<DTO>> i
     return Promise.reject(new NotImplementedException('removeRelations is not implemented'));
   }
 
+  setRelations<Relation>(
+    relationName: string,
+    id: string | number,
+    relationId: (string | number)[],
+    opts?: ModifyRelationOptions<DTO, Relation>,
+  ): Promise<DTO> {
+    return Promise.reject(new NotImplementedException('setRelations is not implemented'));
+  }
+
   setRelation<Relation>(
     relationName: string,
     id: string | number,
diff --git a/packages/core/src/services/proxy-query.service.ts b/packages/core/src/services/proxy-query.service.ts
index bcfc0d61a..ad168e757 100644
--- a/packages/core/src/services/proxy-query.service.ts
+++ b/packages/core/src/services/proxy-query.service.ts
@@ -45,6 +45,15 @@ export class ProxyQueryService<DTO, C = DeepPartial<DTO>, U = DeepPartial<DTO>>
     return this.proxied.removeRelations(relationName, id, relationIds, opts);
   }
 
+  setRelations<Relation>(
+    relationName: string,
+    id: string | number,
+    relationIds: (string | number)[],
+    opts?: ModifyRelationOptions<DTO, Relation>,
+  ): Promise<DTO> {
+    return this.proxied.setRelations(relationName, id, relationIds, opts);
+  }
+
   setRelation<Relation>(
     relationName: string,
     id: string | number,
diff --git a/packages/core/src/services/query.service.ts b/packages/core/src/services/query.service.ts
index 5af6d06ba..7ad665644 100644
--- a/packages/core/src/services/query.service.ts
+++ b/packages/core/src/services/query.service.ts
@@ -156,6 +156,22 @@ export interface QueryService<DTO, C = DeepPartial<DTO>, U = DeepPartial<DTO>> {
     opts?: ModifyRelationOptions<DTO, Relation>,
   ): Promise<DTO>;
 
+  /**
+   * Set the relations on the dto.
+   *
+   * @param relationName - The name of the relation to query for.
+   * @param id - The id of the dto to set the relation on.
+   * @param relationIds - The ids of the relation to set on the dto. If the array is empty the relations will be
+   * removed.
+   * @param opts - Additional options.
+   */
+  setRelations<Relation>(
+    relationName: string,
+    id: string | number,
+    relationIds: (string | number)[],
+    opts?: ModifyRelationOptions<DTO, Relation>,
+  ): Promise<DTO>;
+
   /**
    * Set the relation on the dto.
    *