Cognomen Pornhatai (Pornhatai 
) , in all the world, is an extremely rare family name. Much more frequently, Pornhatai is the forename as well as the last name.
Tasai, Srisavat, Chaysakul, Chuankid, Patomrat, Suebsuttha, Boonyatee, Kasemmala, Phanwiset, Tantiteeravit, Woraprommarat, Amornsenarak, Komutrattananont, and Rojanasuvorapong