diff --git a/.github/workflows/cypress_workflow.yml b/.github/workflows/cypress_workflow.yml
index 5e78785f9b88..83ec4993c73e 100644
--- a/.github/workflows/cypress_workflow.yml
+++ b/.github/workflows/cypress_workflow.yml
@@ -6,16 +6,43 @@ on:
     branches: [ '**' ]
     paths-ignore:
       - '**/*.md'
+  workflow_dispatch:
+    inputs:
+      test_repo:
+        description: 'Test repo'
+        default: 'opensearch-project/opensearch-dashboards-functional-test'
+        required: true
+        type: string
+      test_branch:
+        description: 'Test branch (default: source branch)'
+        required: false
+        type: string
+      pr_number:
+        description: 'PR Number'
+        required: false
+        type: number
+      specs:
+        description: 'Additional tests to run'
+        required: false
+        type: string
 
 env:
+  SOURCE_REPO: ${{ github.repository }}
+  SOURCE_BRANCH: ${{ github.base_ref }}
+  TEST_REPO: ${{ inputs.test_repo != '' && inputs.test_repo || 'opensearch-project/opensearch-dashboards-functional-test' }}
+  TEST_BRANCH: "${{ inputs.test_branch != '' && inputs.test_branch || github.base_ref }}"
   FTR_PATH: 'ftr'
   START_CMD: 'node ../scripts/opensearch_dashboards --dev --no-base-path --no-watch'
   OPENSEARCH_SNAPSHOT_CMD: 'node ../scripts/opensearch snapshot'
   SPEC: 'cypress/integration/core-opensearch-dashboards/opensearch-dashboards/**/*.js,'
+  ADDITIONAL_SPEC: ${{ inputs.specs != '' && inputs.specs || '' }}
   CYPRESS_BROWSER: 'chromium'
   CYPRESS_VISBUILDER_ENABLED: true
   CYPRESS_DATASOURCE_MANAGEMENT_ENABLED: false
   OSD_SNAPSHOT_SKIP_VERIFY_CHECKSUM: true
+  COMMENT_TAG: '[MANUAL CYPRESS TEST RUN RESULTS]'
+  COMMENT_SUCCESS_MSG: ':white_check_mark: Cypress test run succeeded!'
+  COMMENT_FAILURE_MSG: ':x: Cypress test run failed!'
 
 jobs:
   cypress-tests:
@@ -30,8 +57,31 @@ jobs:
       TERM: xterm
     name: Run cypress tests
     steps:
+      - name: Get source information from PR number
+        if: ${{ github.event_name == 'workflow_dispatch' && inputs.pr_number != '' }}
+        id: get_pr_info
+        uses: actions/github-script@v6
+        with:
+          script: |
+            const { data: result } = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: ${{ inputs.pr_number }}
+            });
+            core.setOutput('head_name', result.head.repo.full_name);
+            core.setOutput('head_ref', result.head.ref);
+
+      - name: Set source repo from PR number
+        if: ${{ github.event_name == 'workflow_dispatch' && inputs.pr_number != '' }}
+        run: |
+          echo "SOURCE_REPO=${{ steps.get_pr_info.outputs.head_name }}" >> $GITHUB_ENV
+          echo "SOURCE_BRANCH=${{ steps.get_pr_info.outputs.head_ref }}" >> $GITHUB_ENV
+
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+          repository: ${{ env.SOURCE_REPO }}
+          ref: '${{ env.SOURCE_BRANCH }}'
 
       - name: Setup Node
         uses: actions/setup-node@v2
@@ -54,8 +104,8 @@ jobs:
         uses: actions/checkout@v2
         with:
           path: ${{ env.FTR_PATH }}
-          repository: opensearch-project/opensearch-dashboards-functional-test
-          ref: '${{ github.base_ref }}'
+          repository: ${{ env.TEST_REPO }}
+          ref: '${{ env.TEST_BRANCH }}'
 
       - name: Get Cypress version
         id: cypress_version
@@ -79,7 +129,7 @@ jobs:
           working-directory: ${{ env.FTR_PATH }}
           start: ${{ env.OPENSEARCH_SNAPSHOT_CMD }}, ${{ env.START_CMD }}
           wait-on: 'http://localhost:9200, http://localhost:5601'
-          command: yarn cypress:run-without-security --browser ${{ env.CYPRESS_BROWSER }} --spec ${{ env.SPEC }}
+          command: yarn cypress:run-without-security --browser ${{ env.CYPRESS_BROWSER }} --spec ${{ env.SPEC }}${{ env.ADDITIONAL_SPEC }}
 
       # Screenshots are only captured on failure, will change this once we do visual regression tests
       - uses: actions/upload-artifact@v3
@@ -101,4 +151,39 @@ jobs:
         with:
           name: ftr-cypress-results
           path: ${{ env.FTR_PATH }}/cypress/results
-          retention-days: 1
\ No newline at end of file
+          retention-days: 1
+
+  add-comment:
+    needs: [cypress-tests]
+    if: ${{ always() && github.event_name == 'workflow_dispatch' && inputs.pr_number != '' }}
+    permissions:
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Find Comment
+        uses: peter-evans/find-comment@v2
+        id: fc
+        with:
+          issue-number: ${{ inputs.pr_number }}
+          comment-author: 'github-actions[bot]'
+          body-includes: "${{ env.COMMENT_TAG }}"
+
+      - name: Add comment on the PR
+        uses: peter-evans/create-or-update-comment@v3
+        with:
+          comment-id: ${{ steps.fc.outputs.comment-id }}
+          issue-number: ${{ inputs.pr_number }}
+          body: |
+            ### ${{ env.COMMENT_TAG }}
+
+            #### ${{ needs.cypress-tests.result == 'success' && env.COMMENT_SUCCESS_MSG || env.COMMENT_FAILURE_MSG }}
+
+            #### Inputs:
+            Source repo: `${{ env.SOURCE_REPO }}`
+            Source branch: `${{ env.SOURCE_BRANCH }}`
+            Test repo: `${{ env.TEST_REPO }}`
+            Test branch: ``${{ env.TEST_BRANCH }}``
+
+            #### Link to results: 
+            ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+          edit-mode: replace
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e1a20fd14d79..623c5b7206a9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -59,6 +59,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Re-enable CI workflows for feature branches ([#2908](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2908))
 - Upgrade yarn version to be compatible with @opensearch-project/opensearch ([#3443](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3443))
 - Add an achievement badger to the PR ([#3721](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3721))
+- [CI] Enable inputs for manually triggered Cypress test jobs ([#5134](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5134))
 
 ### 📝 Documentation