I like to use a child-theme.

The parent functions.php

function starkers_widgets_init() {
// Area 1, located at the top of the sidebar.
register_sidebar( array(
    'name' => __( 'Primary Widget Area', 'starkers' ),
    'id' => 'primary-widget-area',
    'description' => __( 'The primary widget area', 'starkers' ),
    'before_widget' => '<li>',
    'after_widget' => '</li>',
    'before_title' => '<h3>',
    'after_title' => '</h3>',
) );

// Area 2 ...

My child-theme functions.php

function xtreme_unregister_sidebar() {
    add_action( 'childtheme_sidebars', 'xtreme_unregister_sidebar' );

But doesn´t work for.

2 Answers 2


Check the code bellow, I think that should work.

add_action( 'after_setup_theme', 'remove_default_sidebars', 11 );
function remove_default_sidebars(){
    remove_action( 'widgets_init', 'starkers_widgets_init' );
  • I just edit the quotes // Remove all widgets from Starkers-Theme add_action( 'after_setup_theme', 'remove_default_sidebars', 11 ); function remove_default_sidebars(){ remove_action( 'widgets_init', 'starkers_widgets_init' ); }
    – ogni
    Apr 22, 2012 at 17:22

The Title of this post is for unregistering widgets not really sidebars, though I am glad the user got what they were looking for. For those searching for how to unregister widgets using a child-theme where the widget was registered in the parent theme, you can do that with this:

Assuming the Parent Theme's Widget is registered at the widgets_init hook, all you need to do is wrap your unregister_widget() call inside of a function, hook that function into widgets_init, and give your hook a higher priority number than the Parent Theme's widgets_init-hooked function.

Assuming the Parent Theme hooks into widgets_init without giving a priority number, the function will default to 10. So, just give your hook call a priority of 11 or greater.

so something like this:

add_action( 'widgets_init', 'remove_theme_widgets', 11 );

function remove_theme_widgets() {


  • A note for future readers that will not understand why @leogopal answered referring to widgets: in the meanwhile I fixed the title and tags of the original question that previously was "Unregister widget from Child-Theme". Apparently from ogni question (and according to the accepted answer) he/her was referring to sidebars not single widgets, despite the previously given title. legopal answer is still a good answer (more descriptive than the approved one, BTW): give it a look if you are trying to remove a sidebar but you just need to remove a widget :)
    – furins
    Jun 2, 2015 at 9:58

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