Cognomen Wattanaphan (Wattanaphan 
) , throughout the world, is a rare surname. The family name Wattanaphan is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Wattanaphan is the forename as well as the last name.
Roj, Kesmanee, Pradchaya, Piyaporn, Jatuporn, Thanawat, Thantika, Thannida, Teerapoj, Nukulkit, Fueangfa, Yodsirin, Saowaluck, Phuvadhon, Nopphadon, Yuttaphan, Chatchai, Pathamaporn, Siriporn, Tanawat, Korn, Manit, Metas, Narut, Satian, Sitang, Adisak, Chenah, Lamyai, Jidapa, Saowani, Supansa, Aprasiri, Chakrit, Jinjuta, Sakditat, and Suratsawadee