Neil Kevin Hennessy (born December 12, 1978) is a punk rock musician and music producer/engineer from Chicago, Illinois.
Hennessy currently plays in The Lawrence Arms, Colossal, The Falcon, The Smoking Popes, The Treasure Fleet and Demon Beach. He has also been a member of Noise By Numbers, Baxter, The Killing Tree, Quattro and a couple shows with Teenage Bottlerocket.
Hennessy works at Atlas Studios in Chicago with Matt Allison. He co-wrote the Rise Against song "Swing Life Away", and also did percussion on the Less Than Jake album, GNV FLA.
Hennessy usually uses a Slingerland (70's) drum kit, Zildjian cymbals, and Remo heads.