diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index e64eb3616..1bdc29d81 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1915,20 +1915,6 @@ module ApplicationHelper
     end
   end
 
-  def render_if_exist(options = {}, locals = {}, &)
-    # Remove test_render_if_exist_should_be_render_partial and test_render_if_exist_should_be_render_nil
-    # along with this method in Redmine 7.0
-    Rails.application.deprecators[:redmine].warn 'ApplicationHelper#render_if_exist is deprecated and will be removed in Redmine 7.0.'
-
-    if options[:partial]
-      if lookup_context.exists?(options[:partial], lookup_context.prefixes, true)
-        render(options, locals, &)
-      end
-    else
-      render(options, locals, &)
-    end
-  end
-
   def heads_for_i18n
     javascript_tag(
       "rm = window.rm || {};" \
diff --git a/test/helpers/application_helper_test.rb b/test/helpers/application_helper_test.rb
index aad2c4542..92c2cd1d9 100644
--- a/test/helpers/application_helper_test.rb
+++ b/test/helpers/application_helper_test.rb
@@ -2292,28 +2292,6 @@ class ApplicationHelperTest < Redmine::HelperTest
     assert_match(/name="new_issue-[a-z0-9]{8}"/, labelled_form_for(Issue.new){})
   end
 
-  # TODO: Remove this test when ApplicationHelper#render_if_exist is removed
-  def test_render_if_exist_should_be_render_partial
-    saved_behavior = Rails.application.deprecators[:active_support].behavior
-    Rails.application.deprecators[:active_support].behavior = :silence
-
-    controller.prepend_view_path "test/fixtures/views"
-    assert_equal "partial html\n", render_if_exist(:partial => 'partial')
-  ensure
-    Rails.application.deprecators[:active_support].behavior = saved_behavior
-  end
-
-  # TODO: Remove this test when ApplicationHelper#render_if_exist is removed
-  def test_render_if_exist_should_be_render_nil
-    saved_behavior = Rails.application.deprecators[:active_support].behavior
-    Rails.application.deprecators[:active_support].behavior = :silence
-
-    controller.prepend_view_path "test/fixtures/views"
-    assert_nil render_if_exist(:partial => 'non_exist_partial')
-  ensure
-    Rails.application.deprecators[:active_support].behavior = saved_behavior
-  end
-
   def test_export_csv_encoding_select_tag_should_return_nil_when_general_csv_encoding_is_UTF8
     with_locale 'az' do
       assert_equal l(:general_csv_encoding), 'UTF-8'