This may not be a frequent request, but few months ago I had a client who wanted to list WooCommerce products by tags assigned to each product. There was no official plugin available (there still isn’t, from what I can tell), but a quick googling brought me to solution created by Remi Corson, WooThemes developer. The solution is very simple, it is actually a shortcode, and below you will find my forked version in which I only added few more shortcode parameters. You can download it from Gist, or you can download the zip file file below the code and install it into your website as a regular plugin. Copyrights go to plugin author.
2. August 2015.2. March 2017.