diff --git a/README.md b/README.md
index 5354a8e..90c9a22 100644
--- a/README.md
+++ b/README.md
@@ -15,11 +15,6 @@
   - [Inputs](#inputs)
   - [Outputs](#outputs)
 - [Examples](#examples)
-  - [Repositories that do not use Pull Requests from forks](#repositories-that-do-not-use-pull-requests-from-forks)
-    - [Cancel duplicate runs for "self" workflow](#cancel-duplicate-runs-for-self-workflow)
-    - [Cancel "self" workflow run](#cancel-self-workflow-run)
-    - [Fail-fast workflow runs with failed jobs](#fail-fast-workflow-runs-with-failed-jobs)
-    - [Cancel all runs with named jobs](#cancel-all-runs-with-named-jobs)
   - [Repositories that use Pull Requests from forks](#repositories-that-use-pull-requests-from-forks)
     - [Cancel duplicate runs for the source workflow](#cancel-duplicate-runs-for-the-source-workflow)
     - [Cancel duplicate jobs for triggered workflow](#cancel-duplicate-jobs-for-triggered-workflow)
@@ -28,6 +23,12 @@
     - [Fail-fast source workflow runs with failed jobs](#fail-fast-source-workflow-runs-with-failed-jobs)
     - [Fail-fast source workflow runs with failed jobs and corresponding triggered runs](#fail-fast-source-workflow-runs-with-failed-jobs-and-corresponding-triggered-runs)
     - [Fail-fast for triggered workflow runs with failed jobs](#fail-fast-for-triggered-workflow-runs-with-failed-jobs)
+    - [Cancel another workflow run](#cancel-another-workflow-run)
+  - [Repositories that do not use Pull Requests from forks](#repositories-that-do-not-use-pull-requests-from-forks)
+    - [Cancel duplicate runs for "self" workflow](#cancel-duplicate-runs-for-self-workflow)
+    - [Cancel "self" workflow run](#cancel-self-workflow-run)
+    - [Fail-fast workflow runs with failed jobs](#fail-fast-workflow-runs-with-failed-jobs)
+    - [Cancel all runs with named jobs](#cancel-all-runs-with-named-jobs)
   - [Development environment](#development-environment)
   - [License](#license)
 
@@ -114,7 +115,8 @@
 | `notifyPRCancelMessage` | no       |              | Optional cancel message to use instead of the default one when notifyPRCancel is true.  It is only used in 'self' cancelling mode.                                                                               |
 | `notifyPRMessageStart`  | no       |              | Only for workflow_run events triggered by the PRs. If not empty, it notifies those PRs with the message specified at the start of the workflow - adding the link to the triggered workflow_run.                  |
 | `jobNameRegexps`        | no       |              | An array of job name regexps. Only runs containing any job name matching any of of the regexp in this array are considered for cancelling in `failedJobs` and `namedJobs` cancel modes.                          |
-| `skipEventTypes`        | no       |              | Array of event names that should be skipped when cancelling (JSON-encoded string). This might be used in order to skip direct pushes or scheduled events..                                                       |
+| `skipEventTypes`        | no       |              | Array of event names that should be skipped when cancelling (JSON-encoded string). This might be used in order to skip direct pushes or scheduled events.                                                        |
+| `workflowFileName`      | no       |              | Name of the workflow file. It can be used if you want to cancel a different workflow than yours.                                                                                                                 |
 
 
 The job cancel modes work as follows:
@@ -145,127 +147,6 @@
 Note that you can combine the steps below in several steps of the same job. The examples here are showing
 one step per case for clarity.
 
-## Repositories that do not use Pull Requests from forks
-
-Note that examples in this chapter only work if you do not have Pull Requests coming from forks (so for
-example if you only work in a private repository). When those action runs within the usual `pull_request`
-triggered runs coming from a fork, they have not enough permissions to cancel running workflows.
-
-If you want to cancel `pull_requests` from forks, you need to use `workflow_run` triggered runs - see the
-[Repositories that use Pull Requests from fork](#repositories-that-use-pull-requests-from-forks) chapter.
-
-Note that in case you configure the separate `workflow_run` Cancelling workflow, there is no need to add
-the action to the "source" workflows. The "Canceling workflow" pattern handles well not only Pull Requests
-from the forks, but also all other cases - including cancelling Pull Requests for the same repository
-and canceling scheduled runs.
-
-### Cancel duplicate runs for "self" workflow
-
-Cancels past runs for the same workflow (with the same branch).
-
-In the case below, any of the direct "push" events will cancel all past runs for the same branch as the
-one being pushed. However, it can be configured for "pull_request" (in the same repository) or "schedule"
-type of events as well. It will also notify the PR with the comment containining why it has been
-cancelled.
-
-```yaml
-name: CI
-on: push
-jobs:
-  cancel-duplicate-workflow-runs:
-    name: "Cancel duplicate workflow runs"
-    runs-on: ubuntu-latest
-    steps:
-      - uses: potiuk/cancel-workflow-runs@v2
-        name: "Cancel duplicate workflow runs"
-        with:
-          cancelMode: duplicates
-          notifyPRCancel: true
-```
-
-### Cancel "self" workflow run
-
-This is useful in case you decide to cancel "self" run.
-
-In the case below - own workflow will be cancelled immediately. It can be configured for "push",
-"pull_request" (from the same repository) or "schedule" type of events.
-
-```yaml
-name: CI
-on: push
-jobs:
-  cancel-self-run:
-    name: "Cancel the self workflow run"
-    runs-on: ubuntu-latest
-    steps:
-      - name: "Cancel the self workflow run"
-        uses: potiuk/cancel-workflow-runs@v2
-        with:
-          cancelMode: self
-          token: ${{ secrets.GITHUB_TOKEN }}
-          notifyPRCancel: true
-```
-
-### Fail-fast workflow runs with failed jobs
-
-Cancels all runs (including self run!) if they have failed jobs matching any of the regular expressions.
-Note that it does not take into account the branch of the running jobs. It will cancel all runs with failed
-jobs, no matter what branch originated it.
-
-In the case below, if any of the own workflow runs have failed jobs matching any of the
-`^Static checks$` and `^Build docs^` or `^Build prod image .*` regexp, this workflow will cancel the runs.
-
-```yaml
-name: CI
-on:
-  push:
-
-jobs:
-  cancel-self-failed-runs:
-    name: "Cancel failed runs"
-    runs-on: ubuntu-latest
-    steps:
-      - uses: potiuk/cancel-workflow-runs@v2
-        name: "Cancel failed runs"
-        with:
-          cancelMode: failedJobs
-          token: ${{ secrets.GITHUB_TOKEN }}
-          jobNameRegexps: '["^Static checks$", "^Build docs$", "^Build prod image.*"]'
-          notifyPRCancel: true
-```
-
-### Cancel all runs with named jobs
-
-Cancels all runs (including self run!) if any of the job names match any of the regular
-expressions. Note that it does not take into account the branch of the runs. It will cancel all runs with
-matching jobs, no matter what branch originated it.
-
-This is useful in case of job names generated dynamically.
-
-In the case below, if any of the "self" workflow runs has job names that matches any of the
-`^Static checks$` and `^Build docs^` or `^Build prod image .*` regexp, this workflow will cancel the runs.
-
-```yaml
-on:
-  push:
-  workflow_run:
-    workflows: ['CI']
-    types: ['requested']
-
-jobs:
-  cancel-self-failed-runs:
-    name: "Cancel the self workflow run"
-    runs-on: ubuntu-latest
-    steps:
-      - uses: potiuk/cancel-workflow-runs@v2
-        name: "Cancel past CI runs"
-        with:
-          cancelMode: namedJobs
-          token: ${{ secrets.GITHUB_TOKEN }}
-          jobNameRegexps: '["^Static checks$", "^Build docs$", "^Build prod image.*"]'
-          notifyPRCancel: true
-```
-
 ## Repositories that use Pull Requests from forks
 
 Note that in case you implement separate "Canceling workflow", following the examples below, you do not
@@ -611,6 +492,153 @@
           jobNameRegexps: '["^Static checks$", "^Build docs$", "^Build prod image.*"]'
 ```
 
+### Cancel another workflow run
+
+This is useful in case you decide to cancel the *source run* that triggered the *triggered run*.
+In the case below, the step cancels the `CI` workflow that triggered the `Cancelling` run.
+
+```yaml
+name: Cancelling
+on:
+  workflow_run:
+    workflows: ['CI']
+    types: ['requested']
+
+  cancel-other-workflow-run:
+    name: "Cancel the self CI workflow run"
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Cancel the self CI workflow run"
+        uses: potiuk/cancel-workflow-runs@v2
+        with:
+          cancelMode: duplicates
+          token: ${{ secrets.GITHUB_TOKEN }}
+          workflowFileName: other_workflow.yml
+```
+
+
+
+## Repositories that do not use Pull Requests from forks
+
+Note that examples in this chapter only work if you do not have Pull Requests coming from forks (so for
+example if you only work in a private repository). When those action runs within the usual `pull_request`
+triggered runs coming from a fork, they have not enough permissions to cancel running workflows.
+
+If you want to cancel `pull_requests` from forks, you need to use `workflow_run` triggered runs - see the
+[Repositories that use Pull Requests from fork](#repositories-that-use-pull-requests-from-forks) chapter.
+
+Note that in case you configure the separate `workflow_run` Cancelling workflow, there is no need to add
+the action to the "source" workflows. The "Canceling workflow" pattern handles well not only Pull Requests
+from the forks, but also all other cases - including cancelling Pull Requests for the same repository
+and canceling scheduled runs.
+
+### Cancel duplicate runs for "self" workflow
+
+Cancels past runs for the same workflow (with the same branch).
+
+In the case below, any of the direct "push" events will cancel all past runs for the same branch as the
+one being pushed. However, it can be configured for "pull_request" (in the same repository) or "schedule"
+type of events as well. It will also notify the PR with the comment containining why it has been
+cancelled.
+
+```yaml
+name: CI
+on: push
+jobs:
+  cancel-duplicate-workflow-runs:
+    name: "Cancel duplicate workflow runs"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: potiuk/cancel-workflow-runs@v2
+        name: "Cancel duplicate workflow runs"
+        with:
+          cancelMode: duplicates
+          notifyPRCancel: true
+```
+
+### Cancel "self" workflow run
+
+This is useful in case you decide to cancel "self" run.
+
+In the case below - own workflow will be cancelled immediately. It can be configured for "push",
+"pull_request" (from the same repository) or "schedule" type of events.
+
+```yaml
+name: CI
+on: push
+jobs:
+  cancel-self-run:
+    name: "Cancel the self workflow run"
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Cancel the self workflow run"
+        uses: potiuk/cancel-workflow-runs@v2
+        with:
+          cancelMode: self
+          token: ${{ secrets.GITHUB_TOKEN }}
+          notifyPRCancel: true
+```
+
+### Fail-fast workflow runs with failed jobs
+
+Cancels all runs (including self run!) if they have failed jobs matching any of the regular expressions.
+Note that it does not take into account the branch of the running jobs. It will cancel all runs with failed
+jobs, no matter what branch originated it.
+
+In the case below, if any of the own workflow runs have failed jobs matching any of the
+`^Static checks$` and `^Build docs^` or `^Build prod image .*` regexp, this workflow will cancel the runs.
+
+```yaml
+name: CI
+on:
+  push:
+
+jobs:
+  cancel-self-failed-runs:
+    name: "Cancel failed runs"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: potiuk/cancel-workflow-runs@v2
+        name: "Cancel failed runs"
+        with:
+          cancelMode: failedJobs
+          token: ${{ secrets.GITHUB_TOKEN }}
+          jobNameRegexps: '["^Static checks$", "^Build docs$", "^Build prod image.*"]'
+          notifyPRCancel: true
+```
+
+### Cancel all runs with named jobs
+
+Cancels all runs (including self run!) if any of the job names match any of the regular
+expressions. Note that it does not take into account the branch of the runs. It will cancel all runs with
+matching jobs, no matter what branch originated it.
+
+This is useful in case of job names generated dynamically.
+
+In the case below, if any of the "self" workflow runs has job names that matches any of the
+`^Static checks$` and `^Build docs^` or `^Build prod image .*` regexp, this workflow will cancel the runs.
+
+```yaml
+on:
+  push:
+  workflow_run:
+    workflows: ['CI']
+    types: ['requested']
+
+jobs:
+  cancel-self-failed-runs:
+    name: "Cancel the self workflow run"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: potiuk/cancel-workflow-runs@v2
+        name: "Cancel past CI runs"
+        with:
+          cancelMode: namedJobs
+          token: ${{ secrets.GITHUB_TOKEN }}
+          jobNameRegexps: '["^Static checks$", "^Build docs$", "^Build prod image.*"]'
+          notifyPRCancel: true
+```
+
 
 ## Development environment
 
diff --git a/action.yml b/action.yml
index 8fc9087..103d4e4 100644
--- a/action.yml
+++ b/action.yml
@@ -46,6 +46,11 @@
       Array of event names that should be skipped when cancelling (JSON-encoded string). This might be used
       in order to skip direct pushes or scheduled events.
     required: false
+  workflowFileName:
+    description: |
+      Name of the workflow file. It can be used if you want to cancel a different workflow than yours.
+    required: false
+
 runs:
   using: 'node12'
   main: 'dist/index.js'
diff --git a/dist/index.js b/dist/index.js
index 53c47fc..a347a2c 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1894,30 +1894,38 @@
         const skipEventTypes = skipEventTypesString
             ? JSON.parse(skipEventTypesString)
             : [];
+        const workflowFileName = core.getInput('workflowFileName');
         const [owner, repo] = repository.split('/');
         core.info(`\nGetting workflow id for source run id: ${sourceRunId}, owner: ${owner}, repo: ${repo},` +
             ` skipEventTypes: ${skipEventTypes}\n`);
-        const sourceWorkflowId = yield getWorkflowId(octokit, sourceRunId, owner, repo);
+        let sourceWorkflowId;
+        if (workflowFileName) {
+            sourceWorkflowId = workflowFileName;
+            core.info(`\nFinding runs for another workflow found by ${workflowFileName} name: ${sourceWorkflowId}\n`);
+        }
+        else {
+            sourceWorkflowId = yield getWorkflowId(octokit, sourceRunId, owner, repo);
+            if (sourceRunId === selfRunId) {
+                core.info(`\nFinding runs for my own workflow ${sourceWorkflowId}\n`);
+            }
+            else {
+                core.info(`\nFinding runs for source workflow ${sourceWorkflowId}\n`);
+            }
+            if (eventName === 'workflow_run' && sourceRunId === selfRunId) {
+                if (cancelMode === CancelMode.DUPLICATES)
+                    throw Error(`You cannot run "workflow_run" in ${cancelMode} cancelMode without "sourceId" input.` +
+                        'It will likely not work as you intended - it will cancel runs which are not duplicates!' +
+                        'See the docs for details.');
+            }
+        }
         core.info(`Repository: ${repository}, Owner: ${owner}, Repo: ${repo}, ` +
             `Event name: ${eventName}, CancelMode: ${cancelMode}, ` +
             `sourceWorkflowId: ${sourceWorkflowId}, sourceRunId: ${sourceRunId}, selfRunId: ${selfRunId}, ` +
             `jobNames: ${jobNameRegexps}`);
-        if (sourceRunId === selfRunId) {
-            core.info(`\nFinding runs for my own workflow ${sourceWorkflowId}\n`);
-        }
-        else {
-            core.info(`\nFinding runs for source workflow ${sourceWorkflowId}\n`);
-        }
         if (jobNameRegexps.length > 0 &&
             [CancelMode.DUPLICATES, CancelMode.SELF].includes(cancelMode)) {
             throw Error(`You cannot specify jobNames on ${cancelMode} cancelMode.`);
         }
-        if (eventName === 'workflow_run' && sourceRunId === selfRunId) {
-            if (cancelMode === CancelMode.DUPLICATES)
-                throw Error(`You cannot run "workflow_run" in ${cancelMode} cancelMode without "sourceId" input.` +
-                    'It will likely not work as you intended - it will cancel runs which are not duplicates!' +
-                    'See the docs for details.');
-        }
         const [headRepo, headBranch, sourceEventName, headSha, mergeCommitSha, pullRequest] = yield getOrigin(octokit, sourceRunId, owner, repo);
         verboseOutput('sourceHeadRepo', headRepo);
         verboseOutput('sourceHeadBranch', headBranch);
diff --git a/src/main.ts b/src/main.ts
index e7bcbe8..9f60f3d 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -23,7 +23,7 @@
   owner: string,
   repo: string,
   status: string,
-  workflowId: number,
+  workflowId: number | string,
   headBranch: string,
   eventName: string
 ): rest.RequestOptions {
@@ -44,7 +44,7 @@
   owner: string,
   repo: string,
   status: string,
-  workflowId: number,
+  workflowId: number | string,
   runId: number
 ): rest.RequestOptions {
   const request = {
@@ -64,7 +64,7 @@
   owner: string,
   repo: string,
   status: string,
-  workflowId: number
+  workflowId: number | string
 ): rest.RequestOptions {
   const request = {
     owner,
@@ -330,7 +330,7 @@
 async function findAndCancelRuns(
   octokit: github.GitHub,
   selfRunId: number,
-  sourceWorkflowId: number,
+  sourceWorkflowId: number | string,
   sourceRunId: number,
   owner: string,
   repo: string,
@@ -569,7 +569,7 @@
 async function performCancelJob(
   octokit: github.GitHub,
   selfRunId: number,
-  sourceWorkflowId: number,
+  sourceWorkflowId: number | string,
   sourceRunId: number,
   owner: string,
   repo: string,
@@ -670,6 +670,7 @@
   const skipEventTypes = skipEventTypesString
     ? JSON.parse(skipEventTypesString)
     : []
+  const workflowFileName = core.getInput('workflowFileName')
 
   const [owner, repo] = repository.split('/')
 
@@ -677,12 +678,29 @@
     `\nGetting workflow id for source run id: ${sourceRunId}, owner: ${owner}, repo: ${repo},` +
       ` skipEventTypes: ${skipEventTypes}\n`
   )
-  const sourceWorkflowId = await getWorkflowId(
-    octokit,
-    sourceRunId,
-    owner,
-    repo
-  )
+  let sourceWorkflowId
+
+  if (workflowFileName) {
+    sourceWorkflowId = workflowFileName
+    core.info(
+      `\nFinding runs for another workflow found by ${workflowFileName} name: ${sourceWorkflowId}\n`
+    )
+  } else {
+    sourceWorkflowId = await getWorkflowId(octokit, sourceRunId, owner, repo)
+    if (sourceRunId === selfRunId) {
+      core.info(`\nFinding runs for my own workflow ${sourceWorkflowId}\n`)
+    } else {
+      core.info(`\nFinding runs for source workflow ${sourceWorkflowId}\n`)
+    }
+    if (eventName === 'workflow_run' && sourceRunId === selfRunId) {
+      if (cancelMode === CancelMode.DUPLICATES)
+        throw Error(
+          `You cannot run "workflow_run" in ${cancelMode} cancelMode without "sourceId" input.` +
+            'It will likely not work as you intended - it will cancel runs which are not duplicates!' +
+            'See the docs for details.'
+        )
+    }
+  }
   core.info(
     `Repository: ${repository}, Owner: ${owner}, Repo: ${repo}, ` +
       `Event name: ${eventName}, CancelMode: ${cancelMode}, ` +
@@ -690,12 +708,6 @@
       `jobNames: ${jobNameRegexps}`
   )
 
-  if (sourceRunId === selfRunId) {
-    core.info(`\nFinding runs for my own workflow ${sourceWorkflowId}\n`)
-  } else {
-    core.info(`\nFinding runs for source workflow ${sourceWorkflowId}\n`)
-  }
-
   if (
     jobNameRegexps.length > 0 &&
     [CancelMode.DUPLICATES, CancelMode.SELF].includes(cancelMode)
@@ -703,15 +715,6 @@
     throw Error(`You cannot specify jobNames on ${cancelMode} cancelMode.`)
   }
 
-  if (eventName === 'workflow_run' && sourceRunId === selfRunId) {
-    if (cancelMode === CancelMode.DUPLICATES)
-      throw Error(
-        `You cannot run "workflow_run" in ${cancelMode} cancelMode without "sourceId" input.` +
-          'It will likely not work as you intended - it will cancel runs which are not duplicates!' +
-          'See the docs for details.'
-      )
-  }
-
   const [
     headRepo,
     headBranch,