diff --git a/lib/gitlab/client.rb b/lib/gitlab/client.rb
index 3317e2a3a..e5e327c84 100644
--- a/lib/gitlab/client.rb
+++ b/lib/gitlab/client.rb
@@ -37,6 +37,7 @@ class Client < API
     include Markdown
     include MergeRequestApprovals
     include MergeRequests
+    include MergeTrains
     include Milestones
     include Namespaces
     include Notes
diff --git a/lib/gitlab/client/merge_trains.rb b/lib/gitlab/client/merge_trains.rb
new file mode 100644
index 000000000..7f32bfaf8
--- /dev/null
+++ b/lib/gitlab/client/merge_trains.rb
@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+class Gitlab::Client
+  # Defines methods related to merge trains.
+  # @see https://docs.gitlab.com/ee/api/merge_trains.html
+  module MergeTrains
+    # Get list of merge trains for a project.
+    #
+    # @example
+    #  Gitlab.merge_trains(1, scope: :active, sort: :asc)
+    #
+    # @param [Integer, String] project The ID or name of a project.
+    # @param [Hash] options A customizable set of options.
+    # @option options [String] :scope The scope of merge trains to return, one of: :active, :complete
+    # @option options [String] :sort Sort by created_at either 'asc' or 'desc'
+    # @return [Array<Gitlab::ObjectifiedHash>]
+    def merge_trains(project, options = {})
+      get("/projects/#{url_encode project}/merge_trains", query: options)
+    end
+
+    # Get all merge requests added to a merge train for the requested target branch.
+    #
+    # @param [Integer, String] project The ID or name of a project.
+    # @param [String] target_branch The target branch of the merge train.
+    # @param [Hash] options A customizable set of options.
+    # @option options [String] :scope The scope of merge trains to return, one of: :active, :complete
+    # @option options [String] :sort Sort by created_at either 'asc' or 'desc'
+    # @return [Array<Gitlab::ObjectifiedHash>]
+    def merge_train_merge_requests(project, target_branch, options = {})
+      get("/projects/#{url_encode project}/merge_trains/#{target_branch}", query: options)
+    end
+
+    # Get merge train information for the requested merge request.
+    #
+    # @param [Integer, String] project The ID or name of a project.
+    # @param [Integer] merge_request_iid The IID of the merge request.
+    # @return [Gitlab::ObjectifiedHash]
+    def merge_train_status(project, merge_request_iid)
+      get("/projects/#{url_encode project}/merge_trains/merge_requests/#{merge_request_iid}")
+    end
+
+    # Add a merge request to the merge train targeting the merge request’s target branch.
+    #
+    # @param [Integer, String] project The ID or name of a project.
+    # @param [Integer] merge_request_iid The IID of the merge request.
+    # @param [Hash] options A customizable set of options.
+    # @option options [Boolean] :when_pipeline_succeeds Add merge request to merge train when pipeline succeeds.
+    # @option options [String] :sha If present, the SHA must match the HEAD of the source branch, otherwise the merge fails.
+    # @option options [Boolean] :squash If true, the commits are squashed into a single commit on merge.
+    # @return [Array<Gitlab::ObjectifiedHash>] <description>
+    def add_merge_request_to_merge_train(project, merge_request_iid, options = {})
+      post("/projects/#{url_encode project}/merge_trains/merge_requests/#{merge_request_iid}", query: options)
+    end
+  end
+end
diff --git a/spec/fixtures/add_mr_to_merge_train.json b/spec/fixtures/add_mr_to_merge_train.json
new file mode 100644
index 000000000..ae3a82375
--- /dev/null
+++ b/spec/fixtures/add_mr_to_merge_train.json
@@ -0,0 +1,42 @@
+[
+  {
+    "id": 267,
+    "merge_request": {
+      "id": 273,
+      "iid": 1,
+      "project_id": 597,
+      "title": "My title 9",
+      "description": null,
+      "state": "opened",
+      "created_at": "2022-10-31T19:06:05.725Z",
+      "updated_at": "2022-10-31T19:06:05.725Z",
+      "web_url": "http://localhost/namespace18/project21/-/merge_requests/1"
+    },
+    "user": {
+      "id": 933,
+      "username": "user12",
+      "name": "Sidney Jones31",
+      "state": "active",
+      "avatar_url": "https://www.gravatar.com/avatar/6c8365de387cb3db10ecc7b1880203c4?s=80\u0026d=identicon",
+      "web_url": "http://localhost/user12"
+    },
+    "pipeline": {
+      "id": 273,
+      "iid": 1,
+      "project_id": 598,
+      "sha": "b83d6e391c22777fca1ed3012fce84f633d7fed0",
+      "ref": "main",
+      "status": "pending",
+      "source": "push",
+      "created_at": "2022-10-31T19:06:06.231Z",
+      "updated_at": "2022-10-31T19:06:06.231Z",
+      "web_url": "http://localhost/namespace19/project22/-/pipelines/273"
+    },
+    "created_at": "2022-10-31T19:06:06.237Z",
+    "updated_at":"2022-10-31T19:06:06.237Z",
+    "target_branch":"main",
+    "status":"idle",
+    "merged_at":null,
+    "duration":null
+  }
+]
diff --git a/spec/fixtures/merge_train_merge_requests.json b/spec/fixtures/merge_train_merge_requests.json
new file mode 100644
index 000000000..ae3a82375
--- /dev/null
+++ b/spec/fixtures/merge_train_merge_requests.json
@@ -0,0 +1,42 @@
+[
+  {
+    "id": 267,
+    "merge_request": {
+      "id": 273,
+      "iid": 1,
+      "project_id": 597,
+      "title": "My title 9",
+      "description": null,
+      "state": "opened",
+      "created_at": "2022-10-31T19:06:05.725Z",
+      "updated_at": "2022-10-31T19:06:05.725Z",
+      "web_url": "http://localhost/namespace18/project21/-/merge_requests/1"
+    },
+    "user": {
+      "id": 933,
+      "username": "user12",
+      "name": "Sidney Jones31",
+      "state": "active",
+      "avatar_url": "https://www.gravatar.com/avatar/6c8365de387cb3db10ecc7b1880203c4?s=80\u0026d=identicon",
+      "web_url": "http://localhost/user12"
+    },
+    "pipeline": {
+      "id": 273,
+      "iid": 1,
+      "project_id": 598,
+      "sha": "b83d6e391c22777fca1ed3012fce84f633d7fed0",
+      "ref": "main",
+      "status": "pending",
+      "source": "push",
+      "created_at": "2022-10-31T19:06:06.231Z",
+      "updated_at": "2022-10-31T19:06:06.231Z",
+      "web_url": "http://localhost/namespace19/project22/-/pipelines/273"
+    },
+    "created_at": "2022-10-31T19:06:06.237Z",
+    "updated_at":"2022-10-31T19:06:06.237Z",
+    "target_branch":"main",
+    "status":"idle",
+    "merged_at":null,
+    "duration":null
+  }
+]
diff --git a/spec/fixtures/merge_train_status.json b/spec/fixtures/merge_train_status.json
new file mode 100644
index 000000000..fec7c57e2
--- /dev/null
+++ b/spec/fixtures/merge_train_status.json
@@ -0,0 +1,40 @@
+{
+  "id": 267,
+  "merge_request": {
+    "id": 273,
+    "iid": 1,
+    "project_id": 597,
+    "title": "My title 9",
+    "description": null,
+    "state": "opened",
+    "created_at": "2022-10-31T19:06:05.725Z",
+    "updated_at": "2022-10-31T19:06:05.725Z",
+    "web_url": "http://localhost/namespace18/project21/-/merge_requests/1"
+  },
+  "user": {
+    "id": 933,
+    "username": "user12",
+    "name": "Sidney Jones31",
+    "state": "active",
+    "avatar_url": "https://www.gravatar.com/avatar/6c8365de387cb3db10ecc7b1880203c4?s=80\u0026d=identicon",
+    "web_url": "http://localhost/user12"
+  },
+  "pipeline": {
+    "id": 273,
+    "iid": 1,
+    "project_id": 598,
+    "sha": "b83d6e391c22777fca1ed3012fce84f633d7fed0",
+    "ref": "main",
+    "status": "pending",
+    "source": "push",
+    "created_at": "2022-10-31T19:06:06.231Z",
+    "updated_at": "2022-10-31T19:06:06.231Z",
+    "web_url": "http://localhost/namespace19/project22/-/pipelines/273"
+  },
+  "created_at": "2022-10-31T19:06:06.237Z",
+  "updated_at":"2022-10-31T19:06:06.237Z",
+  "target_branch":"main",
+  "status":"idle",
+  "merged_at":null,
+  "duration":null
+}
diff --git a/spec/fixtures/merge_trains.json b/spec/fixtures/merge_trains.json
new file mode 100644
index 000000000..3c74da084
--- /dev/null
+++ b/spec/fixtures/merge_trains.json
@@ -0,0 +1,39 @@
+[
+  {
+    "id": 110,
+    "merge_request": {
+      "id": 126,
+      "iid": 59,
+      "project_id": 20,
+      "title": "Test MR 1580978354",
+      "description": "",
+      "state": "merged",
+      "created_at": "2020-02-06T08:39:14.883Z",
+      "updated_at": "2020-02-06T08:40:57.038Z",
+      "web_url": "http://local.gitlab.test:8181/root/merge-train-race-condition/-/merge_requests/59"
+    },
+    "user": {
+      "id": 1,
+      "name": "Administrator",
+      "username": "root",
+      "state": "active",
+      "avatar_url": "https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon",
+      "web_url": "http://local.gitlab.test:8181/root"
+    },
+    "pipeline": {
+      "id": 246,
+      "sha": "bcc17a8ffd51be1afe45605e714085df28b80b13",
+      "ref": "refs/merge-requests/59/train",
+      "status": "success",
+      "created_at": "2020-02-06T08:40:42.410Z",
+      "updated_at": "2020-02-06T08:40:46.912Z",
+      "web_url": "http://local.gitlab.test:8181/root/merge-train-race-condition/pipelines/246"
+    },
+    "created_at": "2020-02-06T08:39:47.217Z",
+    "updated_at": "2020-02-06T08:40:57.720Z",
+    "target_branch": "feature-1580973432",
+    "status": "merged",
+    "merged_at": "2020-02-06T08:40:57.719Z",
+    "duration": 70
+  }
+]
diff --git a/spec/gitlab/client/merge_trains_spec.rb b/spec/gitlab/client/merge_trains_spec.rb
new file mode 100644
index 000000000..30ef010d9
--- /dev/null
+++ b/spec/gitlab/client/merge_trains_spec.rb
@@ -0,0 +1,69 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Client do
+  describe '.merge_trains' do
+    before do
+      stub_get('/projects/3/merge_trains', 'merge_trains')
+      @merge_trains = Gitlab.merge_trains(3)
+    end
+
+    it 'gets the correct resource' do
+      expect(a_get('/projects/3/merge_trains')).to have_been_made
+    end
+
+    it 'returns a paginated response of mrege trains' do
+      expect(@merge_trains).to be_a Gitlab::PaginatedResponse
+      expect(@merge_trains.first.target_branch).to eq('feature-1580973432')
+    end
+  end
+
+  describe '.merge_train_merge_requests' do
+    before do
+      stub_get('/projects/3/merge_trains/main', 'merge_train_merge_requests')
+      @merge_train_merge_requests = Gitlab.merge_train_merge_requests(3, 'main')
+    end
+
+    it 'gets the correct resource' do
+      expect(a_get('/projects/3/merge_trains/main')).to have_been_made
+    end
+
+    it 'returns a paginated response of merge train merge requests' do
+      expect(@merge_train_merge_requests).to be_a Gitlab::PaginatedResponse
+      expect(@merge_train_merge_requests.first.id).to eq(267)
+    end
+  end
+
+  describe '.merge_train_status' do
+    before do
+      stub_get('/projects/3/merge_trains/merge_requests/1', 'merge_train_status')
+      @merge_train_status = Gitlab.merge_train_status(3, 1)
+    end
+
+    it 'gets the correct resource' do
+      expect(a_get('/projects/3/merge_trains/merge_requests/1')).to have_been_made
+    end
+
+    it 'returns merge train status' do
+      expect(@merge_train_status).to be_a Gitlab::ObjectifiedHash
+      expect(@merge_train_status.id).to eq(267)
+    end
+  end
+
+  describe '.add_merge_request_to_merge_train' do
+    before do
+      stub_post('/projects/3/merge_trains/merge_requests/1', 'add_mr_to_merge_train')
+      @merge_train_status = Gitlab.add_merge_request_to_merge_train(3, 1)
+    end
+
+    it 'gets the correct resource' do
+      expect(a_post('/projects/3/merge_trains/merge_requests/1')).to have_been_made
+    end
+
+    it 'adds merge request to merge train and returns merge trains' do
+      expect(@merge_train_status).to be_a Gitlab::PaginatedResponse
+      expect(@merge_train_status.first.id).to eq(267)
+    end
+  end
+end