Napoleon Murphy Brock is an American singer, saxophonist and flautist who is best known for his work with Frank Zappa in the 1970s, including the albums One Size Fits All, Roxy and Elsewhere, and Bongo Fury. He is perhaps best remembered for his vocal performances on Village of The Sun and Inca Roads; he also played the role of the "Evil Prince" on Zappa's Thing-Fish album. Brock has also performed with George Duke, Captain Beefheart & His Magic Band and more recently with Neonfire and Robert Kramer. He remains a regular performer at Zappanale.

Brock appeared in the 2005 film Rock School, a documentary about The Paul Green School of Rock Music, an extracurricular music program that he and Project/Object have closely supported for several years.

In 2006, he toured with Frank Zappa's son Dweezil Zappa on the latter's Zappa Plays Zappa shows. He also regularly tours with fellow Zappa alumnus Ike Willis and others with Andre Cholmondeley's Project/Object. Other Zappa related projects he's been involved with include the Tampa, Florida based band Bogus Pomp, and the 16 piece Ed Palermo Big Band from New York City. His own most recent release is the 2003 album Balls.