Arefly

Do not want to show specific category in your blog?
Use this plugin now!
This plugin can hide specific category in your blog’s page.
<h4>Translators</h4>
<ul>
<li>Brazilian Portuguese (pt_BR) – <a href="http://trabalharonline.com/" rel="nofollow ugc">Diogo Gomes</a></li>
<li>European Portuguese (pt_PT) – <a href="http://trabalharonline.com/" rel="nofollow ugc">Diogo Gomes</a></li>
<li>Chinese, Simplified (zh_CN) – <a href="http://www.arefly.com/" rel="nofollow ugc">Arefly</a></li>
<li>Chinese, Traditional (zh_TW) – <a href="http://www.arefly.com" rel="nofollow ugc">Arefly</a></li>
<li>English (en_US) – <a href="http://www.arefly.com" rel="nofollow ugc">Arefly</a></li>
</ul>
If you have created your own language pack, or have an update of an existing one, you can send <a href="https://codex.wordpress.org/Translating_WordPress" rel="nofollow ugc">gettext PO and MO files</a> to <a href="http://www.arefly.com/about/" rel="nofollow ugc">Arefly</a> so that I can bundle it into WP Hide Category. You can download the latest <a href="https://plugins.svn.wordpress.org/wp-hide-category/trunk/lang/wp-hide-category.pot" rel="nofollow ugc">POT file</a>.

WP Hide Category

nerdywp

This plugin will let you hide out of stock products in WooCommerce but only for certain categories. WooCommerce currently lets you either hide all out of stock products or none. This expands on that and lets you choose a category to hide when out of stock.
You might want to use this to keep newer products on your website eventhough they’re out of stock. Hiding the older, out of stock WooCommerce products would remove some clutter.

Hide Out Of Stock By Category

An easy and simple way to hide products in WooCommerce by category when they're out of stock

WP Hide Category vs Hide Out Of Stock By Category