Surname Piangchai (Piangchai 
) , all around the world, is a very rare cognomen. The last name Piangchai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Piangchai is the forename as well as the last name.
Nawae, Koo Anupong, Tingen, Piandam, Tangsee, Kreachalee, Pianpitoon, Thongsuk, Ferstand, Noppadech, Palanandana, Prachaksuwan, and Hanwatanawuthi