The Polish Wikipedia is the Polish-language edition of Wikipedia, a free online encyclopedia. Founded on September 26, 2001, it now has more than 1,614,000 articles, making it the 11th-largest Wikipedia edition overall. It is also the second-largest edition in a Slavic language, after the Russian Wikipedia.

Wikipedia is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the use of the wiki-based editing system MediaWiki. Wikipedia is the largest and most-read reference work in history. It is consistently ranked as one of the ten most popular websites in the world, and as of 2024 is ranked the fifth most visited website on the Internet by Semrush, and second by Ahrefs. Founded by Jimmy Wales and Larry Sanger on January 15, 2001, Wikipedia is hosted by the Wikimedia Foundation, an American nonprofit organization that employs a staff of over 700 people.