Cognomen ไผ่ (Phai 
, Phaiy , Phait 
) , in the world, is quite a rare surname. The surname ไผ่ is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname, Myanmar, where it is a rare surname, and Malaysia. Measured by absolute frequency, it is commonest in India, Myanmar, and Laos. Also, ไผ่ is the forename as well as the last name.