Marcus Timmons (born November 3, 1971) is an American-Australian former professional basketball player. He played for the Wollongong Hawks, Melbourne Tigers, Perth Wildcats, Cairns Taipans, New Zealand Breakers and Adelaide 36ers. Timmons won NBL championships with the Tigers in 1997 and the Wildcats in 2000. Timmons has also played pro basketball in the Philippines, Poland, and Latvia. He won a Latvian championship with ASK/Brocēni/LMT. He is the uncle of NBA player Otto Porter Jr.