diff --git a/app/controllers/collections_controller.rb b/app/controllers/collections_controller.rb
index 0877f89f6cf..66546e40deb 100644
--- a/app/controllers/collections_controller.rb
+++ b/app/controllers/collections_controller.rb
@@ -38,19 +38,19 @@ def index
         .paginate(page: params[:page])
     elsif params[:collection_id]
       @collection = Collection.find_by!(name: params[:collection_id])
-      @search = CollectionSearchForm.new({ parent_id: @collection.id, sort_column: "title.keyword" }.merge(page: params[:page]))
+      @search = CollectionSearchForm.new({ parent_id: @collection.id, sort_column: "title.keyword" }.merge(page: params[:page]), logged_in_as_admin?)
       @collections = @search.search_results.scope(:for_search)
       flash_search_warnings(@collections)
       @page_subtitle = t(".subcollections_page_title", collection_title: @collection.title)
     elsif params[:user_id]
       @user = User.find_by!(login: params[:user_id])
-      @search = CollectionSearchForm.new({ maintainer_id: @user.id, sort_column: "title.keyword" }.merge(page: params[:page]))
+      @search = CollectionSearchForm.new({ maintainer_id: @user.id, sort_column: "title.keyword" }.merge(page: params[:page]), logged_in_as_admin?)
       @collections = @search.search_results.scope(:for_search)
       flash_search_warnings(@collections)
       @page_subtitle = ts("%{username} - Collections", username: @user.login)
     else
       @sort_and_filter = true
-      @search = CollectionSearchForm.new(collection_filter_params.merge(page: params[:page]))
+      @search = CollectionSearchForm.new(collection_filter_params.merge(page: params[:page]), logged_in_as_admin?)
       @collections = @search.search_results.scope(:for_search)
       flash_search_warnings(@collections)
     end
diff --git a/app/models/search/collection_query.rb b/app/models/search/collection_query.rb
index 61792360dad..deb4afeb92d 100644
--- a/app/models/search/collection_query.rb
+++ b/app/models/search/collection_query.rb
@@ -126,6 +126,7 @@ def sort_column
   end
 
   def sort
+    options[:sort_column] = sort_column.sub("public", "general") if (@user.present? || options[:admin_logged_in]) && sort_column.include?("public")
     direction = options[:sort_direction].presence
     direction ||= if sort_column.include?("title") || sort_column.include?("signups_close_at")
                     "asc"
diff --git a/app/models/search/collection_search_form.rb b/app/models/search/collection_search_form.rb
index 7dd45aadf29..d9e453a3676 100644
--- a/app/models/search/collection_search_form.rb
+++ b/app/models/search/collection_search_form.rb
@@ -25,8 +25,9 @@ class CollectionSearchForm
     define_method(filterable) { options[filterable] }
   end
 
-  def initialize(opts = {})
+  def initialize(opts = {}, admin_logged_in = false) # rubocop:disable Style/OptionalBooleanParameter
     @options = opts
+    @options[:admin_logged_in] = admin_logged_in
     process_options
     @searcher = CollectionQuery.new(@options)
   end
@@ -64,7 +65,9 @@ def sort_direction
   def sort_options
     [
       ["Date Created", "created_at"],
-      ["Title", "title.keyword"]
+      %w[Title title.keyword],
+      ["Bookmarked Items", "public_bookmarked_items_count"],
+      %w[Works public_works_count]
     ].freeze
   end
 
diff --git a/features/collections/collection_browse.feature b/features/collections/collection_browse.feature
index 223fdbe13e2..8e6aef1e31b 100644
--- a/features/collections/collection_browse.feature
+++ b/features/collections/collection_browse.feature
@@ -229,6 +229,52 @@ Feature: Collection
     And I should see "Surprise Presents"
     But I should not see "Another Gift Swap"
 
+  Scenario: Sort collections by Works and Bookmarks
+
+  Given I have a collection "Privates"
+    And I have a collection "Publics"
+  When I am logged in as the owner of "Privates"
+    And I post the work "Private 1" in the collection "Privates"
+    And I lock the work "Private 1"
+    And I post the work "Private 2" in the collection "Privates"
+    And I lock the work "Private 2"
+    And I bookmark the work "Private 1" to the collection "Publics"
+    And I bookmark the work "Private 2" to the collection "Publics"
+    And I post the work "Public 1" in the collection "Publics"
+    And I bookmark the work "Public 1" to the collection "Privates"
+    And all indexing jobs have been run
+    And I go to the collections page
+    And I select "Works" from "collection_search_sort_column"
+    And I press "Sort and Filter"
+  Then I should see the text with tags '<a href="/collections/Privates/works">2</a>'
+    And I should see the text with tags '<a href="/collections/Publics/works">1</a>'
+  When I log out
+  Then I should see the text with tags '<a href="/collections/Privates/works">0</a>'
+    And I should see the text with tags '<a href="/collections/Publics/works">1</a>'
+  When I am logged in as a super admin
+    And I go to the collections page
+    And I select "Works" from "collection_search_sort_column"
+    And I press "Sort and Filter"
+  Then I should see the text with tags '<a href="/collections/Privates/works">2</a>'
+    And I should see the text with tags '<a href="/collections/Publics/works">1</a>'
+  When I go to the collections page
+    And I select "Bookmarked Items" from "collection_search_sort_column"
+    And I press "Sort and Filter"
+  Then I should see the text with tags '<a href="/collections/Privates/bookmarks">1</a>'
+    And I should see the text with tags '<a href="/collections/Publics/bookmarks">2</a>'
+  When I log out
+    And I go to the collections page
+    And I select "Bookmarked Items" from "collection_search_sort_column"
+    And I press "Sort and Filter"
+  Then I should see the text with tags '<a href="/collections/Privates/bookmarks">1</a>'
+    And I should not see the text with tags '<a href="/collections/Publics/bookmarks">2</a>'
+  When I am logged in as a super admin
+    And I go to the collections page
+    And I select "Bookmarked Items" from "collection_search_sort_column"
+    And I press "Sort and Filter"
+  Then I should see the text with tags '<a href="/collections/Privates/bookmarks">1</a>'
+    And I should see the text with tags '<a href="/collections/Publics/bookmarks">2</a>'
+
   Scenario: Look at a collection, see the rules and intro and FAQ
 
   Given a set of collections for searching
diff --git a/spec/controllers/collections_controller_spec.rb b/spec/controllers/collections_controller_spec.rb
index fe38dc191eb..c2e9c3c0457 100644
--- a/spec/controllers/collections_controller_spec.rb
+++ b/spec/controllers/collections_controller_spec.rb
@@ -109,6 +109,38 @@
         expect(response).to have_http_status(:success)
         expect(assigns(:collections).map(&:title)).to eq sorted_collection_titles
       end
+
+      it "sorts collections by Works, DESC by default" do
+        sorted_collection_titles = Collection.all.sort_by(&:public_works_count).reverse.map(&:title)
+
+        get :index, params: { collection_search: { sort_column: "public_works_count" } }
+        expect(response).to have_http_status(:success)
+        expect(assigns(:collections).map(&:title)).to eq sorted_collection_titles
+      end
+
+      it "sorts collections by Works" do
+        sorted_collection_titles = Collection.all.sort_by(&:public_works_count).map(&:title)
+
+        get :index, params: { collection_search: { sort_column: "public_works_count", sort_direction: "ASC" } }
+        expect(response).to have_http_status(:success)
+        expect(assigns(:collections).map(&:title)).to eq sorted_collection_titles
+      end
+
+      it "sorts collections by Bookmarks, DESC by default" do
+        sorted_collection_titles = Collection.all.sort_by(&:public_bookmarked_items_count).reverse.map(&:title)
+
+        get :index, params: { collection_search: { sort_column: "public_bookmarked_items_count" } }
+        expect(response).to have_http_status(:success)
+        expect(assigns(:collections).map(&:title)).to eq sorted_collection_titles
+      end
+
+      it "sorts collections by Bookmarks" do
+        sorted_collection_titles = Collection.all.sort_by(&:public_bookmarked_items_count).map(&:title)
+
+        get :index, params: { collection_search: { sort_column: "public_bookmarked_items_count", sort_direction: "ASC" } }
+        expect(response).to have_http_status(:success)
+        expect(assigns(:collections).map(&:title)).to eq sorted_collection_titles
+      end
     end
 
     context "collections index for user collections" do
diff --git a/spec/models/search/collection_query_spec.rb b/spec/models/search/collection_query_spec.rb
index 0220422822b..9cac8f81f20 100644
--- a/spec/models/search/collection_query_spec.rb
+++ b/spec/models/search/collection_query_spec.rb
@@ -19,6 +19,26 @@
     expect(q.generated_query[:sort]).to eq([{ "title.keyword" => { order: "desc" } }, { "id" => { order: "desc" } }])
   end
 
+  it "sorts by bookmarked items" do
+    q = CollectionQuery.new(sort_column: "public_bookmarked_items_count", sort_direction: "desc")
+    expect(q.generated_query[:sort]).to eq([{ "public_bookmarked_items_count" => { order: "desc" } }, { "id" => { order: "desc" } }])
+  end
+
+  it "sorts by works" do
+    q = CollectionQuery.new(sort_column: "public_works_count", sort_direction: "desc")
+    expect(q.generated_query[:sort]).to eq([{ "public_works_count" => { order: "desc" } }, { "id" => { order: "desc" } }])
+  end
+
+  it "sorts by general bookmarked items when logged in" do
+    q = CollectionQuery.new(sort_column: "public_bookmarked_items_count", sort_direction: "desc", admin_logged_in: true)
+    expect(q.generated_query[:sort]).to eq([{ "general_bookmarked_items_count" => { order: "desc" } }, { "id" => { order: "desc" } }])
+  end
+
+  it "sorts by general works when logged in" do
+    q = CollectionQuery.new(sort_column: "public_works_count", sort_direction: "desc", admin_logged_in: true)
+    expect(q.generated_query[:sort]).to eq([{ "general_works_count" => { order: "desc" } }, { "id" => { order: "desc" } }])
+  end
+
   describe "filtering", collection_search: true do
     let!(:gift_exchange) { create(:gift_exchange, signup_open: true, signups_open_at: Time.current - 2.days, signups_close_at: Time.current + 1.week) }
     let!(:gift_exchange_collection) { create(:collection, challenge: gift_exchange, challenge_type: "GiftExchange") }