Gap Yah is a comedy sketch that gained widespread popularity and press coverage, especially in the United Kingdom, after being published on the video-sharing site YouTube in February 2010. It was created and performed by Oxford University graduate Matt Lacey of sketch comedy theatre troupe The Unexpected Items. The video was produced and directed by VM Productions and The Unexpected Items. The video became a viral hit, with 660,000 views in its first month and around 50,000 views a day in late March 2010. As of September 2018, the original video has been viewed over 6.3 million times.