Grand Buffet is a hip-hop funk duo from Pittsburgh, Pennsylvania, made up of Jackson O'Connell-Barlow (stage names: Iguanadon, Grape-a-Don, Plaps, Nate Kukla, and Mr. Pennsylvania) and Jarrod Weeks (stage names: M-Dog, Lord Grunge, Viceroy, Matt Kukla, Fred Durts). The group's music is a unique brand of humorous, often satirical rap.

This duo has toured several times with notable artists such as Gil Mantera's Party Dream, Sage Francis, Of Montreal, Cex, Sole, Magnolia Electric Co., Streetlight Manifesto, and the late Wesley Willis, and has also toured the United States and Europe extensively.

In 2005, the duo finished a European tour with Sage Francis, and an American Tour with Of Montreal and MGMT in 2006.

The duo then toured with Girl Talk in 2008 and Third Eye Blind in 2009.