Eduardo

Hide one o more categories when you use the_category tag or wp_list_categories tag. No exclude post, but only hide a category name in template view. 
Example? 
You use a category called “featured” in your template but you don’t want it see? Use Hide Categories
Thanks to <a href="http://www.infocube.it" title="sviluppo software" rel="nofollow ugc">infocube</a> for the plugin’s idea

Hide Categories

Hide one o more categories when you use the_category tag or wp_list_categories tag. No exclude post, but only hide a category name in template view.

Marios Alexandrou

Ultimate Category Excluder, abbreviated as UCE, is a WordPress plugin that allows you to quickly and easily exclude categories from your front page, archives, feeds, and searches. Just select which categories you want to be excluded, and UCE does all the work for you!

Ultimate Category Excluder

Ultimate Category Excluder allows you to quickly and easily exclude categories from your front page, archives, feeds, and search results.

Hide Categories vs Ultimate Category Excluder