Joseph W. Maher (born c. 1953), known as Big Joe Maher, is an American electric blues drummer, singer and songwriter. He is known for his jump blues group called Big Joe & the Dynaflows. He has worked with many blues musicians including Delbert McClinton, Anson Funderburgh, Kevin McKendree, Bob Margolin, Mark Wenner, Ann Rabson, Jimmy Witherspoon, Bull Moose Jackson, Nappy Brown, Otis Rush, Earl King, Duke Robillard, and Tom Principato.