Family name Ngak (Ngak 
, งัก) , around the globe, is a rare last name. The family name Ngak is characteristic of South-eastern Asia, particularly Malaysia, where it is a rare surname, Singapore, and Myanmar, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Malaysia, Indonesia, and India. Much less frequently, Ngak is the forename as well as the last name.