Brett Steven Maher (born 17 April 1973) is an Australian retired professional basketball player.
He played his entire seventeen-year career for his hometown Adelaide 36ers in the National Basketball League (NBL) from 1992 to 2009.
Maher also represented Australia at the 1996, 2000 and 2004 Summer Olympic Games, as well as at the 1998 FIBA World Championship.
Maher gained his highest international basketball honour when he captained the Boomers at the 2001 Goodwill Games in Brisbane.