diff --git a/packages/core/admin/ee/server/constants/workflows.js b/packages/core/admin/ee/server/constants/workflows.js
index 12c0940900..07a79c0090 100644
--- a/packages/core/admin/ee/server/constants/workflows.js
+++ b/packages/core/admin/ee/server/constants/workflows.js
@@ -14,5 +14,6 @@ module.exports = {
       'You’ve reached the limit of workflows in your plan. Delete a workflow or contact Sales to enable more workflows.',
     STAGES_LIMIT:
       'You’ve reached the limit of stages for this workflow in your plan. Try deleting some stages or contact Sales to enable more stages.',
+    DUPLICATED_STAGE_NAME: 'Stage names must be unique.',
   },
 };
diff --git a/packages/core/admin/ee/server/services/review-workflows/validation.js b/packages/core/admin/ee/server/services/review-workflows/validation.js
index c65c0f06e0..6382b53f6a 100644
--- a/packages/core/admin/ee/server/services/review-workflows/validation.js
+++ b/packages/core/admin/ee/server/services/review-workflows/validation.js
@@ -1,5 +1,6 @@
 'use strict';
 
+const { uniq } = require('lodash/fp');
 const { ValidationError } = require('@strapi/utils').errors;
 const { getService } = require('../../utils');
 const { ERRORS, MAX_WORKFLOWS, MAX_STAGES_PER_WORKFLOW } = require('../../constants/workflows');
@@ -32,6 +33,11 @@ module.exports = ({ strapi }) => {
       if (stages.length > this.limits.stagesPerWorkflow) {
         throw new ValidationError(ERRORS.STAGES_LIMIT);
       }
+      // Validate stage names are not duplicated
+      const stageNames = stages.map((stage) => stage.name);
+      if (uniq(stageNames).length !== stageNames.length) {
+        throw new ValidationError(ERRORS.DUPLICATED_STAGE_NAME);
+      }
     },
 
     async validateWorkflowCountStages(workflowId, countAddedStages = 0) {