diff --git a/services/graph/pkg/service/v0/service.go b/services/graph/pkg/service/v0/service.go
index fb5e490851..3396a2d1da 100644
--- a/services/graph/pkg/service/v0/service.go
+++ b/services/graph/pkg/service/v0/service.go
@@ -106,6 +106,7 @@ type Service interface { //nolint:interfacebloat
 	GetDrivesV1(w http.ResponseWriter, r *http.Request)
 	GetDrivesV1Beta1(w http.ResponseWriter, r *http.Request)
 	GetSingleDrive(w http.ResponseWriter, r *http.Request)
+	GetUserDrive(w http.ResponseWriter, r *http.Request)
 	GetAllDrivesV1(w http.ResponseWriter, r *http.Request)
 	GetAllDrivesV1Beta1(w http.ResponseWriter, r *http.Request)
 	CreateDrive(w http.ResponseWriter, r *http.Request)
diff --git a/services/graph/pkg/service/v0/users.go b/services/graph/pkg/service/v0/users.go
index 18b154546b..f9c29b17eb 100644
--- a/services/graph/pkg/service/v0/users.go
+++ b/services/graph/pkg/service/v0/users.go
@@ -147,13 +147,15 @@ func (g Graph) GetUserDrive(w http.ResponseWriter, r *http.Request) {
 
 	log = log.With().Str("userID", userID).Logger()
 
-	_, expandPermissions, err := parseDriveRequest(r)
+	odataReq, expandPermissions, err := parseDriveRequest(r)
 	if err != nil {
 		log.Debug().Err(err).Msg("could not get drives: error parsing odata request")
 		errorcode.RenderError(w, r, err)
 		return
 	}
 
+	// Empty {user-id} is the current user (/me/drive); a non-empty one may be
+	// an id or a name, so resolve it to the opaque id the filter expects.
 	if userID == "" {
 		u, ok := revactx.ContextGetUser(ctx)
 		if !ok {
@@ -162,6 +164,14 @@ func (g Graph) GetUserDrive(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 		userID = u.GetId().GetOpaqueId()
+	} else {
+		user, err := g.identityBackend.GetUser(ctx, userID, odataReq)
+		if err != nil {
+			log.Debug().Err(err).Str("userID", userID).Msg("could not get user drive: failed to resolve user")
+			errorcode.RenderError(w, r, err)
+			return
+		}
+		userID = user.GetId()
 	}
 
 	log.Debug().Msg("calling list storage spaces with user and personal filter")
diff --git a/services/graph/pkg/service/v0/users_test.go b/services/graph/pkg/service/v0/users_test.go
index 5db85f90f8..3f6eafce20 100644
--- a/services/graph/pkg/service/v0/users_test.go
+++ b/services/graph/pkg/service/v0/users_test.go
@@ -115,6 +115,43 @@ var _ = Describe("Users", func() {
 			Expect(err).ToNot(HaveOccurred())
 		})
 
+		Describe("GetUserDrive", func() {
+			It("resolves the user by name before looking up the personal space", func() {
+				user := &libregraph.User{}
+				user.SetId("user1")
+
+				// A name in the path must be resolved to the user id via the
+				// identity backend before the storage space filter runs.
+				permissionService.On("GetPermissionByID", mock.Anything, mock.Anything).Return(&settings.GetPermissionByIDResponse{}, nil)
+				identityBackend.On("GetUser", mock.Anything, "alice", mock.Anything).Return(user, nil)
+				gatewayClient.On("ListStorageSpaces", mock.Anything, mock.Anything, mock.Anything).Return(&provider.ListStorageSpacesResponse{
+					Status: status.NewOK(ctx),
+					StorageSpaces: []*provider.StorageSpace{
+						{
+							Id:        &provider.StorageSpaceId{OpaqueId: "drive1"},
+							Root:      &provider.ResourceId{StorageId: "storage", SpaceId: "space", OpaqueId: "space"},
+							SpaceType: "personal",
+						},
+					},
+				}, nil)
+				gatewayClient.On("GetQuota", mock.Anything, mock.Anything, mock.Anything).Return(&provider.GetQuotaResponse{
+					Status:     status.NewOK(ctx),
+					TotalBytes: 10,
+				}, nil)
+				valueService.On("GetValueByUniqueIdentifiers", mock.Anything, mock.Anything, mock.Anything).
+					Return(&settings.GetValueResponse{}, nil)
+
+				r := httptest.NewRequest(http.MethodGet, "/graph/v1.0/users/alice/drive", nil)
+				rctx := chi.NewRouteContext()
+				rctx.URLParams.Add("userID", "alice")
+				r = r.WithContext(context.WithValue(revactx.ContextSetUser(ctx, currentUser), chi.RouteCtxKey, rctx))
+				svc.GetUserDrive(rr, r)
+
+				Expect(rr.Code).To(Equal(http.StatusOK))
+				identityBackend.AssertCalled(GinkgoT(), "GetUser", mock.Anything, "alice", mock.Anything)
+			})
+		})
+
 		Describe("GetMe", func() {
 			It("handles missing user", func() {
 				r := httptest.NewRequest(http.MethodGet, "/graph/v1.0/me", nil)