Family name Wattanai (Wattanai 
) , around the globe, is an extremely rare last name. The family name Wattanai is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Predominantly, Wattanai is the forename as well as the last name.
Son, Onsamrarn, Yimsukpaitoon, Sawasyart, Atthakorn, Chaichart, Tipsathaporn, Intaracha, Saratoonpituk, Kerdsombut, Parichatmongkol, Prayoonmahisorn, Phumprapai, Wannawilai, Wichainkue, Manasurangkul, Akkarapanya, Chaichomphu, Thipsathaporn, Techasuwanna, Visestarn, Homsanit, Lattikul, Pipatvidhyanont, Onn, Taja, Panya, Paekoh, Phayai, Foyphigul, Wohlae, Sirirak, Coothongkul, Wannapaschaiyong, Kaewjun, Panploy, Promjuy, Laoakkha, Thogmaha, Nakarit, Inkampun, Chanakot, Chevintulak, Kongnava, Koyadun, and Cheewakriengkrai