Cognomen Phoonphanich (Phoonphanich 
) , across the world, is a very rare surname. The cognomen Phoonphanich is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, Phoonphanich is the forename as well as the last name.
Serm, Jain, Uarjit, Narttaya, Varunee, Chaweewan, Phimphache, Nopphawat, Chattrawadee, and Phongsaphat