Globally, Wangsai (Wangsai 
) is a very rare male first name. The first name Wangsai is characteristic of Southern Asia, particularly India, where it is an extremely rare masculine name. More prevalently, Wangsai is the last name as well as the forename.
Sanga, Supakorn, Kamoltip, Peachaya, Juntarut, Naruemol, Nattanun, Surachat, Nantarika, Yupaporn, Mingkhwan, Sitthanon, Angsumalee, Pratoomtip, Tawanchai, Wannapha, Kotchapong, Siwakorn, Wassana, Sakda, Kirin, Tawin, Yanin, Adisak, Bordin, Yingyos, Siripat, Pondhathai, Pichaya, Phakjira, Jutatip, Jirapun, Thanida, Sukanya, and Phanuphong