diff --git a/github/actions_workflows.go b/github/actions_workflows.go
index 672b34947a9..aa680246e30 100644
--- a/github/actions_workflows.go
+++ b/github/actions_workflows.go
@@ -149,13 +149,26 @@ func (s *ActionsService) getWorkflowUsage(ctx context.Context, url string) (*Wor
 	return workflowUsage, resp, nil
 }
 
-// CreateWorkflowDispatchEvent manually triggers a GitHub Actions workflow run.
+// CreateWorkflowDispatchEventByID manually triggers a GitHub Actions workflow run.
 //
 // GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/actions/#create-a-workflow-dispatch-event
-func (s *ActionsService) CreateWorkflowDispatchEvent(ctx context.Context, owner, repo string, workflowID int64, event CreateWorkflowDispatchEventRequest) (*Response, error) {
+func (s *ActionsService) CreateWorkflowDispatchEventByID(ctx context.Context, owner, repo string, workflowID int64, event CreateWorkflowDispatchEventRequest) (*Response, error) {
 	u := fmt.Sprintf("repos/%v/%v/actions/workflows/%v/dispatches", owner, repo, workflowID)
 
-	req, err := s.client.NewRequest("POST", u, &event)
+	return s.createWorkflowDispatchEvent(ctx, u, &event)
+}
+
+// CreateWorkflowDispatchEventByFileName manually triggers a GitHub Actions workflow run.
+//
+// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/actions/#create-a-workflow-dispatch-event
+func (s *ActionsService) CreateWorkflowDispatchEventByFileName(ctx context.Context, owner, repo, workflowFileName string, event CreateWorkflowDispatchEventRequest) (*Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/actions/workflows/%v/dispatches", owner, repo, workflowFileName)
+
+	return s.createWorkflowDispatchEvent(ctx, u, &event)
+}
+
+func (s *ActionsService) createWorkflowDispatchEvent(ctx context.Context, url string, event *CreateWorkflowDispatchEventRequest) (*Response, error) {
+	req, err := s.client.NewRequest("POST", url, event)
 	if err != nil {
 		return nil, err
 	}
diff --git a/github/actions_workflows_test.go b/github/actions_workflows_test.go
index 77c4a49f0d0..04b7eaa1435 100644
--- a/github/actions_workflows_test.go
+++ b/github/actions_workflows_test.go
@@ -155,7 +155,7 @@ func TestActionsService_GetWorkflowUsageByFileName(t *testing.T) {
 	}
 }
 
-func TestActionsService_CreateWorkflowDispatchEvent(t *testing.T) {
+func TestActionsService_CreateWorkflowDispatchEventByID(t *testing.T) {
 	client, mux, _, teardown := setup()
 	defer teardown()
 
@@ -175,16 +175,49 @@ func TestActionsService_CreateWorkflowDispatchEvent(t *testing.T) {
 		}
 	})
 
-	_, err := client.Actions.CreateWorkflowDispatchEvent(context.Background(), "o", "r", 72844, event)
+	_, err := client.Actions.CreateWorkflowDispatchEventByID(context.Background(), "o", "r", 72844, event)
 	if err != nil {
-		t.Errorf("Actions.CreateWorkflowDispatchEvent returned error: %v", err)
+		t.Errorf("Actions.CreateWorkflowDispatchEventByID returned error: %v", err)
 	}
 
 	// Test s.client.NewRequest failure
 	client.BaseURL.Path = ""
-	_, err = client.Actions.CreateWorkflowDispatchEvent(context.Background(), "o", "r", 72844, event)
+	_, err = client.Actions.CreateWorkflowDispatchEventByID(context.Background(), "o", "r", 72844, event)
 	if err == nil {
-		t.Error("client.BaseURL.Path='' CreateWorkflowDispatchEvent err = nil, want error")
+		t.Error("client.BaseURL.Path='' CreateWorkflowDispatchEventByID err = nil, want error")
+	}
+}
+
+func TestActionsService_CreateWorkflowDispatchEventByFileName(t *testing.T) {
+	client, mux, _, teardown := setup()
+	defer teardown()
+
+	event := CreateWorkflowDispatchEventRequest{
+		Ref: "d4cfb6e7",
+		Inputs: map[string]interface{}{
+			"key": "value",
+		},
+	}
+	mux.HandleFunc("/repos/o/r/actions/workflows/main.yml/dispatches", func(w http.ResponseWriter, r *http.Request) {
+		var v CreateWorkflowDispatchEventRequest
+		json.NewDecoder(r.Body).Decode(&v)
+
+		testMethod(t, r, "POST")
+		if !reflect.DeepEqual(v, event) {
+			t.Errorf("Request body = %+v, want %+v", v, event)
+		}
+	})
+
+	_, err := client.Actions.CreateWorkflowDispatchEventByFileName(context.Background(), "o", "r", "main.yml", event)
+	if err != nil {
+		t.Errorf("Actions.CreateWorkflowDispatchEventByFileName returned error: %v", err)
+	}
+
+	// Test s.client.NewRequest failure
+	client.BaseURL.Path = ""
+	_, err = client.Actions.CreateWorkflowDispatchEventByFileName(context.Background(), "o", "r", "main.yml", event)
+	if err == nil {
+		t.Error("client.BaseURL.Path='' CreateWorkflowDispatchEventByFileName err = nil, want error")
 	}
 }