diff --git a/github/github-accessors.go b/github/github-accessors.go
index e192e57d774..cdd754644d0 100644
--- a/github/github-accessors.go
+++ b/github/github-accessors.go
@@ -45702,6 +45702,14 @@ func (u *UnauthenticatedRateLimitedTransport) GetClientSecret() string {
 	return u.ClientSecret
 }
 
+// GetReason returns the Reason field if it's non-nil, zero value otherwise.
+func (u *UnsuspendUserRequest) GetReason() string {
+	if u == nil || u.Reason == nil {
+		return ""
+	}
+	return *u.Reason
+}
+
 // GetConditions returns the Conditions field.
 func (u *UpdateActionsPolicyRequest) GetConditions() *ActionsPolicyConditions {
 	if u == nil {
diff --git a/github/github-accessors_test.go b/github/github-accessors_test.go
index e86fbcce1fc..7f0ec880522 100644
--- a/github/github-accessors_test.go
+++ b/github/github-accessors_test.go
@@ -56962,6 +56962,17 @@ func TestUnauthenticatedRateLimitedTransport_GetClientSecret(tt *testing.T) {
 	u.GetClientSecret()
 }
 
+func TestUnsuspendUserRequest_GetReason(tt *testing.T) {
+	tt.Parallel()
+	var zeroValue string
+	u := &UnsuspendUserRequest{Reason: &zeroValue}
+	u.GetReason()
+	u = &UnsuspendUserRequest{}
+	u.GetReason()
+	u = nil
+	u.GetReason()
+}
+
 func TestUpdateActionsPolicyRequest_GetConditions(tt *testing.T) {
 	tt.Parallel()
 	u := &UpdateActionsPolicyRequest{}
diff --git a/github/users_administration.go b/github/users_administration.go
index 34e603ab61e..46e72bd73bf 100644
--- a/github/users_administration.go
+++ b/github/users_administration.go
@@ -63,15 +63,23 @@ func (s *UsersService) Suspend(ctx context.Context, user string, body *UserSuspe
 	return s.client.Do(req, nil)
 }
 
+// UnsuspendUserRequest represents a request to unsuspend a user.
+type UnsuspendUserRequest struct {
+	// Reason is the reason the user is being unsuspended, which is logged in the audit log.
+	// If it is not provided, it defaults to "Unsuspended via API by SITE_ADMINISTRATOR",
+	// where SITE_ADMINISTRATOR is the person who performed the action.
+	Reason *string `json:"reason,omitempty"`
+}
+
 // Unsuspend a user on a GitHub Enterprise instance.
 //
 // GitHub API docs: https://docs.github.com/enterprise-server@3.22/rest/enterprise-admin/users#unsuspend-a-user
 //
 //meta:operation DELETE /users/{username}/suspended
-func (s *UsersService) Unsuspend(ctx context.Context, user string) (*Response, error) {
+func (s *UsersService) Unsuspend(ctx context.Context, user string, body UnsuspendUserRequest) (*Response, error) {
 	u := fmt.Sprintf("users/%v/suspended", user)
 
-	req, err := s.client.NewRequest(ctx, "DELETE", u, nil)
+	req, err := s.client.NewRequest(ctx, "DELETE", u, body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/github/users_administration_test.go b/github/users_administration_test.go
index 563975823b8..ef82676b6f8 100644
--- a/github/users_administration_test.go
+++ b/github/users_administration_test.go
@@ -117,18 +117,37 @@ func TestUsersService_Unsuspend(t *testing.T) {
 	})
 
 	ctx := t.Context()
-	_, err := client.Users.Unsuspend(ctx, "u")
+	_, err := client.Users.Unsuspend(ctx, "u", UnsuspendUserRequest{})
 	if err != nil {
 		t.Errorf("Users.Unsuspend returned error: %v", err)
 	}
 
 	const methodName = "Unsuspend"
 	testBadOptions(t, methodName, func() (err error) {
-		_, err = client.Users.Unsuspend(ctx, "\n")
+		_, err = client.Users.Unsuspend(ctx, "\n", UnsuspendUserRequest{})
 		return err
 	})
 
 	testNewRequestAndDoFailure(t, methodName, client, func() (*Response, error) {
-		return client.Users.Unsuspend(ctx, "u")
+		return client.Users.Unsuspend(ctx, "u", UnsuspendUserRequest{})
 	})
 }
+
+func TestUsersServiceReason_Unsuspend(t *testing.T) {
+	t.Parallel()
+	client, mux, _ := setup(t)
+
+	body := UnsuspendUserRequest{Reason: new("test")}
+
+	mux.HandleFunc("/users/u/suspended", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "DELETE")
+		testJSONBody(t, r, body)
+		w.WriteHeader(http.StatusNoContent)
+	})
+
+	ctx := t.Context()
+	_, err := client.Users.Unsuspend(ctx, "u", body)
+	if err != nil {
+		t.Errorf("Users.Unsuspend returned error: %v", err)
+	}
+}