HMAS Aitape was an Attack-class patrol boat of the Royal Australian Navy (RAN). It was named for the small town of Aitape, Sandaun Province, Papua New Guinea. Completed in 1967, the vessel was one of five assigned to the RAN's Papua New Guinea (PNG) Division. The patrol boat was transferred to the Papua New Guinea Defence Force in 1974 as HMPNGS Aitape. She remained active until 1982, when she was removed from service for use as a parts hulk. Aitape was scuttled off Port Moresby for use as a dive wreck in 1995.

The Attack-class patrol boats were small coastal defence vessels built for the Royal Australian Navy (RAN) and operated between 1967 and at least 1991. Following their Australian service, twelve ships were transferred to Papua New Guinea and Indonesia.