diff --git a/CHANGELOG b/CHANGELOG
index adda5373c3cac9bef10b3d127f5c2ce3d85dca00..04647ac901c3fc5099a7c6800f8520f10c57a040 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,7 @@
 Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.5.0 (unreleased)
+  - Add "visibility" flag to GET /projects api endpoint
 
 v 8.4.0 (unreleased)
   - Ensure Gravatar host looks like an actual host
diff --git a/app/models/project.rb b/app/models/project.rb
index cb668e0c2f754b29fbff35d35a99f5c569be365e..5579710a47666a98a97e9b49f539b66157fa6088 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -272,6 +272,10 @@ class Project < ActiveRecord::Base
               query: "%#{query.try(:downcase)}%")
     end
 
+    def search_by_visibility(level)
+      where(visibility_level: Gitlab::VisibilityLevel.const_get(level.upcase))
+    end
+
     def search_by_title(query)
       where('projects.archived = ?', false).where('LOWER(projects.name) LIKE :query', query: "%#{query.downcase}%")
     end
diff --git a/doc/api/groups.md b/doc/api/groups.md
index 808675d8605006c142a25eb188d66190c6bb73da..d47e79ba47f20aa52d2f3e987ea3f5e24245df5a 100644
--- a/doc/api/groups.md
+++ b/doc/api/groups.md
@@ -33,6 +33,7 @@ GET /groups/:id/projects
 Parameters:
 
 - `archived` (optional) - if passed, limit by archived status
+- `visibility` (optional) - if passed, limit by visibility `public`, `internal`, `private`
 - `order_by` (optional) - Return requests ordered by `id`, `name`, `path`, `created_at`, `updated_at` or `last_activity_at` fields. Default is `created_at`
 - `sort` (optional) - Return requests sorted in `asc` or `desc` order. Default is `desc`
 - `search` (optional) - Return list of authorized projects according to a search criteria
diff --git a/doc/api/projects.md b/doc/api/projects.md
index 241229221db2d8de459a0af4739eb8ef8fb92c15..3f372c955d22ed07dca9fa22c5e9e2fe66d5b73a 100644
--- a/doc/api/projects.md
+++ b/doc/api/projects.md
@@ -29,6 +29,7 @@ GET /projects
 Parameters:
 
 - `archived` (optional) - if passed, limit by archived status
+- `visibility` (optional) - if passed, limit by visibility `public`, `internal`, `private`
 - `order_by` (optional) - Return requests ordered by `id`, `name`, `path`, `created_at`, `updated_at` or `last_activity_at` fields. Default is `created_at`
 - `sort` (optional) - Return requests sorted in `asc` or `desc` order. Default is `desc`
 - `search` (optional) - Return list of authorized projects according to a search criteria
@@ -152,6 +153,7 @@ GET /projects/owned
 Parameters:
 
 - `archived` (optional) - if passed, limit by archived status
+- `visibility` (optional) - if passed, limit by visibility `public`, `internal`, `private`
 - `order_by` (optional) - Return requests ordered by `id`, `name`, `path`, `created_at`, `updated_at` or `last_activity_at` fields. Default is `created_at`
 - `sort` (optional) - Return requests sorted in `asc` or `desc` order. Default is `desc`
 - `search` (optional) - Return list of authorized projects according to a search criteria
@@ -167,6 +169,7 @@ GET /projects/starred
 Parameters:
 
 - `archived` (optional) - if passed, limit by archived status
+- `visibility` (optional) - if passed, limit by visibility `public`, `internal`, `private`
 - `order_by` (optional) - Return requests ordered by `id`, `name`, `path`, `created_at`, `updated_at` or `last_activity_at` fields. Default is `created_at`
 - `sort` (optional) - Return requests sorted in `asc` or `desc` order. Default is `desc`
 - `search` (optional) - Return list of authorized projects according to a search criteria
@@ -182,6 +185,7 @@ GET /projects/all
 Parameters:
 
 - `archived` (optional) - if passed, limit by archived status
+- `visibility` (optional) - if passed, limit by visibility `public`, `internal`, `private`
 - `order_by` (optional) - Return requests ordered by `id`, `name`, `path`, `created_at`, `updated_at` or `last_activity_at` fields. Default is `created_at`
 - `sort` (optional) - Return requests sorted in `asc` or `desc` order. Default is `desc`
 - `search` (optional) - Return list of authorized projects according to a search criteria
diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index 6d2380cf47dd4b3c7a4933153eda7585106fa061..3f528b9f7c09c2de47ec25c6891ed6794ee7c57c 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -264,6 +264,10 @@ module API
         projects = projects.search(params[:search])
       end
 
+      if params[:visibility].present?
+        projects = projects.search_by_visibility(params[:visibility])
+      end
+
       projects.reorder(project_order_by => project_sort)
     end
 
diff --git a/spec/requests/api/projects_spec.rb b/spec/requests/api/projects_spec.rb
index 6f4c336b66ca65e37c6bc79c80f59986993022ea..2a310f3834dc2d062273be150c5a8a057baa39ed 100644
--- a/spec/requests/api/projects_spec.rb
+++ b/spec/requests/api/projects_spec.rb
@@ -90,6 +90,29 @@ describe API::API, api: true  do
         end
       end
 
+      context 'and using the visibility filter' do
+        it 'should filter based on private visibility param' do
+          get api('/projects', user), { visibility: 'private' }
+          expect(response.status).to eq(200)
+          expect(json_response).to be_an Array
+          expect(json_response.length).to eq(user.namespace.projects.where(visibility_level: Gitlab::VisibilityLevel::PRIVATE).count)
+        end
+
+        it 'should filter based on internal visibility param' do
+          get api('/projects', user), { visibility: 'internal' }
+          expect(response.status).to eq(200)
+          expect(json_response).to be_an Array
+          expect(json_response.length).to eq(user.namespace.projects.where(visibility_level: Gitlab::VisibilityLevel::INTERNAL).count)
+        end
+
+        it 'should filter based on public visibility param' do
+          get api('/projects', user), { visibility: 'public' }
+          expect(response.status).to eq(200)
+          expect(json_response).to be_an Array
+          expect(json_response.length).to eq(user.namespace.projects.where(visibility_level: Gitlab::VisibilityLevel::PUBLIC).count)
+        end
+      end
+
       context 'and using sorting' do
         before do
           project2