Family name Vanassanan (Vanassanan 
) , all around the world, is an extremely rare last name. Much more frequently, Vanassanan is the forename as well as the last name.
Sakuma, Sukkha, Lumlong, Issaro, Sitiwachira, Siriwachira, Songkhao, Nontasut, Wongsuvan, Yingnakhon, Chanthadej, Phantachak, Phongsuwan, Tanawongkorn, and Tancharoen