diff --git a/app/graphql/types/issue_type.rb b/app/graphql/types/issue_type.rb
index c762aa69e433d7fb46aa3288f79fc15b32ac0ee3..f2365499eeee07804ca854cab5afd3dc28611c40 100644
--- a/app/graphql/types/issue_type.rb
+++ b/app/graphql/types/issue_type.rb
@@ -51,5 +51,7 @@ module Types
 
     field :created_at, Types::TimeType, null: false
     field :updated_at, Types::TimeType, null: false
+
+    field :task_completion_status, Types::TaskCompletionStatus, null: false
   end
 end
diff --git a/app/graphql/types/merge_request_type.rb b/app/graphql/types/merge_request_type.rb
index 662503d447be43870e035c8098e5e616aab6a9c5..dac4c24cf102c8a3889d30dccd6ec34d404bea64 100644
--- a/app/graphql/types/merge_request_type.rb
+++ b/app/graphql/types/merge_request_type.rb
@@ -55,5 +55,7 @@ module Types
     field :head_pipeline, Types::Ci::PipelineType, null: true, method: :actual_head_pipeline
     field :pipelines, Types::Ci::PipelineType.connection_type,
           resolver: Resolvers::MergeRequestPipelinesResolver
+
+    field :task_completion_status, Types::TaskCompletionStatus, null: false
   end
 end
diff --git a/app/graphql/types/task_completion_status.rb b/app/graphql/types/task_completion_status.rb
new file mode 100644
index 0000000000000000000000000000000000000000..c289802509dbb85747b673e60dad7b04956414ef
--- /dev/null
+++ b/app/graphql/types/task_completion_status.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+module Types
+  class TaskCompletionStatus < BaseObject
+    graphql_name 'TaskCompletionStatus'
+    description 'Completion status of tasks'
+
+    field :count, GraphQL::INT_TYPE, null: false
+    field :completed_count, GraphQL::INT_TYPE, null: false
+  end
+end
diff --git a/changelogs/unreleased/62910-task-completion-status-gql-pderichs.yml b/changelogs/unreleased/62910-task-completion-status-gql-pderichs.yml
new file mode 100644
index 0000000000000000000000000000000000000000..dcbfa7c185d1d1a28a558df24f9dbfc528467896
--- /dev/null
+++ b/changelogs/unreleased/62910-task-completion-status-gql-pderichs.yml
@@ -0,0 +1,5 @@
+---
+title: Make task completion status available via GraphQL
+merge_request:
+author:
+type: added
diff --git a/spec/requests/api/graphql/tasks/task_completion_status_spec.rb b/spec/requests/api/graphql/tasks/task_completion_status_spec.rb
new file mode 100644
index 0000000000000000000000000000000000000000..c457a6d7c2534cf10bf4b6c470f47529bcbf7091
--- /dev/null
+++ b/spec/requests/api/graphql/tasks/task_completion_status_spec.rb
@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'getting task completion status information' do
+  include GraphqlHelpers
+
+  DESCRIPTION_0_DONE = '- [ ] task 1\n- [ ] task 2'
+  DESCRIPTION_1_DONE = '- [x] task 1\n- [ ] task 2'
+  DESCRIPTION_2_DONE = '- [x] task 1\n- [x] task 2'
+
+  set(:user1) { create(:user) }
+  set(:project) { create(:project, :repository, :public) }
+
+  let(:fields) do
+    <<~QUERY
+    taskCompletionStatus {
+      count,
+      completedCount
+    }
+    QUERY
+  end
+
+  def create_task_completion_status_query_for(type, iid)
+    graphql_query_for(
+      'project',
+        { 'fullPath' => project.full_path },
+        query_graphql_field(type, { iid: iid }, fields)
+    )
+  end
+
+  shared_examples_for 'graphql task completion status provider' do |type|
+    it 'returns the expected task completion status' do
+      post_graphql(create_task_completion_status_query_for(type, item.iid), current_user: user1)
+
+      expect(response).to have_gitlab_http_status(200)
+
+      task_completion_status = graphql_data.dig('project', type, 'taskCompletionStatus')
+      expect(task_completion_status).not_to be_nil
+      expect(task_completion_status['count']).to eq(item.task_completion_status[:count])
+      expect(task_completion_status['completedCount']).to eq(item.task_completion_status[:completed_count])
+    end
+  end
+
+  [DESCRIPTION_0_DONE, DESCRIPTION_1_DONE, DESCRIPTION_2_DONE].each do |desc|
+    context "with description #{desc}" do
+      context 'when type is issue' do
+        it_behaves_like 'graphql task completion status provider', 'issue' do
+          let(:item) { create(:issue, project: project, description: desc) }
+        end
+      end
+
+      context 'when type is merge request' do
+        it_behaves_like 'graphql task completion status provider', 'mergeRequest' do
+          let(:item) { create(:merge_request, author: user1, source_project: project, description: desc) }
+        end
+      end
+    end
+  end
+end
diff --git a/spec/support/helpers/graphql_helpers.rb b/spec/support/helpers/graphql_helpers.rb
index e95c7f2a6d6190f915a1f4fc891ef494969af03a..bcf6669f37d4bf621209e4043c5000523f04d111 100644
--- a/spec/support/helpers/graphql_helpers.rb
+++ b/spec/support/helpers/graphql_helpers.rb
@@ -157,7 +157,7 @@ module GraphqlHelpers
     when Array # multiplexed queries
       json_response.map { |response| response['errors'] }
     else
-      raise "Unkown GraphQL response type #{json_response.class}"
+      raise "Unknown GraphQL response type #{json_response.class}"
     end
   end