Allison Petra Cook-Tranquilli (born 12 August 1972 in Melbourne, Victoria) is a retired female basketball player from Australia, who played for the Melbourne Tigers and PVSK Pecs in Hungary.
A two-time Olympian she was a member of the national women's team that claimed the bronze medal at the 1996 Summer Olympics in Atlanta, Georgia.
She attended the Australian Institute of Sport in 1990-1991.