WordPress Foundation Trademark Usage Policy
Permission from the WordPress Foundation is required to use the WordPress or WordCamp name or logo as part of any project, product, service, domain or company name.
We will grant permission to use the WordPress name and logo for projects that meet the following criteria:
The primary purpose of your project is to promote the spread and improvement of the WordPress software.
Your project is non-commercial in nature (it can make money to cover its costs or contribute to non-profit entities, but it cannot be run as a for-profit project or business).
Your project neither promotes nor is associated with entities that currently fail to comply with the GPL license under which WordPress is distributed.