urbanecm

This plugin allows users to embed queries created using <a href="https://query.wikidata.org" rel="nofollow ugc">Wikidata Query Service</a> using WordPress native embed feature. This is particulary 
useful if you are blogging about any kind of data, and you wish to use Wikidata Query Service at your blog. This means you can avoid using the raw HTML block 
(which can be dangerous), and just use the embed block.
To use this plugin, just embed any query you created at Wikidata Query Service. The URL used for the embed block should be the one you see, ie. not the from the 
embeding iframe that’s generated by Wikidata Query Service.

Wikidata Query Service Embeder

This plugin allows users to embed queries created using Wikidata Query Service using WordPress native embed feature.

zeko3991

Wikidata References will add a new field to tags and categories for adding a Wikidata Item ID to which tags and categories terms will be associated to.
Also it will provide the site admin the option to add a link to those associated Wikidata items to the head metadata section, or to the tag/category archive title.
User will also have the option to frame tag and categories archive pages links into a Schema.org 
microformat.
This plugin was developed under the requisites of a Wikimedia phabricator request at 
<a href="https://phabricator.wikimedia.org/T138371" rel="nofollow ugc">https://phabricator.wikimedia.org/T138371</a>

Wikidata References for WordPress

Really liked this plugin. Useful. Doesn't add unnecessary taxonomies. Would be interested in seeing what other features it could add. Authors with Wikipedia pages or Wikidata entries could be linked as well from their profiles. 

One of the few plugins that seems to get the core idea really well.

Very excellent

Wikidata References is a plugin developed to help WordPress users to add associations among the tags and categories they use in this WordPress website …

Wikidata Query Service Embeder vs Wikidata References for WordPress