Family name Phothisan (Phothisan 
) , throughout the world, is a rare last name. The family name Phothisan is characteristic of South-eastern Asia, particularly Laos, where it is quite a rare surname, Thailand, where it is a rare surname, and Myanmar, where it is a very rare surname.
Taa, Teangon, Savitree, Supranee, Anchalee, Chokchai, Kittinan, Pranomsee, Phongsit, Rattikorn, Thitikon, Natsanan, Vilasack, Vilaphon, Wansinee, Wanprada, Witthaya, Alexander, Cholakarn, Theerachai, Thitikorn, Valaphone, Janjira, Lamngeun, Rattiya, Piyamon, Tee, Sasi, Sura, Pani, Meena, Saart, Suwan, Ampun, Aunsri, Kowit, Yuphaphon, Panin, Suriya, Connie, Prakit, Debbie, Namfon, Umporn, Surasak, Adriana, Kaiviset, Pachuen, Louie, and Monthaphon