Surname Ingtong (Inging 
, Ingtong 
) , all over the world, is a rare last name. The surname Ingtong is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname, Myanmar, and Thailand, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in China, Myanmar, and Malaysia. Also, Ingtong is the forename as well as the last name.