I'm using a child theme created from a twenty-twelve theme, the theme packs a number of sidebars one which is called "Main Sidebar".

Is it possible to change it's name to something else?

  • You have unregister the parent sidebar with unregister_sidebar and register your own with the name you want. – Rubens Mariuzzo Aug 29 '13 at 19:35
  • thanks, I'm reading about it. I tried to do it just now but the bar still appears on admin>widgets – Lisandro Vaccaro Aug 29 '13 at 19:37
  • if you suggest it as an answer and complete it a bit, I'll accept. I simply unregistered and registered mine – Lisandro Vaccaro Aug 29 '13 at 20:03

Hook into register_sidebar and change the name after the sidebar was registered.


add_action( 'register_sidebar', function( $sidebar )
    global $wp_registered_sidebars;

    if ( 'Main Sidebar' !== $sidebar[ 'name' ] )

    $id = $sidebar[ 'id' ];
    $sidebar[ 'name' ] = 'Master';

    $wp_registered_sidebars[ $id ] = $sidebar;

There is no need to unregister the original if you want to change just the name.

You can change other properties too:

  • description
  • class
  • before_widget, after_widget
  • before_title, after_title
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  • Nice solution, this is cleaner than unregistering and register it again. – Rubens Mariuzzo Aug 29 '13 at 20:24
  • Yes, excellent solution. It may result in an unexpected T_FUNCTION error though. Wordpress only requires PHP 5.2.4 but passing an anonymous function as a parameter requires 5.3. – epilektric Aug 29 '13 at 20:29
  • @epilektric I did this on purpose. – fuxia Aug 29 '13 at 20:34
  • @toscho Fair enough. – epilektric Aug 29 '13 at 20:56

Look functions.php file of twenty-twelve theme.

there is twentytwelve_widgets_init functions for registering sidebar.You can change name of sidebar from there.

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