RMAF Butterworth (Malay: TUDM Butterworth) is an active Air Force Station of the Royal Malaysian Air Force (RMAF) situated 4.5 nautical miles (8.3 km; 5.2 mi) from Butterworth in Penang, Malaysia. It is currently home to the Headquarters Integrated Area Defence System (HQIADS), part of the Five Power Defence Arrangements (FPDA).