Empire Square (abbreviated Empire Sq.) is a British animated TV series created by Matt Morgan made with pixel graphics. It originated in the UK, where it was broadcast on Channel 4 late at night on Fridays. From 18 April to 23 May 2006, the United States music network Fuse aired full length half-hour episodes as opposed to the 2-4 minute ones in the UK. Those half-hour episodes were later broadcast on Channel 4 from 27 October 2007 to 1 December 2007.

The series as a whole was considered to be lost media until 2022, when all of the 2-4 minute episodes (which were broadcast on Channel 4 and available on a DVD) were uploaded to YouTube. However, as of 2024, all but one of the full length half-hour episodes that were broadcast by Fuse still remain lost, with only one episode (Sleep Study) having been found.