Surname Siwanee (Siwanee 
) , around the world, is an extremely rare cognomen. The last name Siwanee is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more frequently, Siwanee is the forename as well as the last name.
Takue, Thongphanit, Kongtongsang, Kaewboonkhum, Chanphisuitkul, Muangnoicharoen, Ponglangka, Santawee, Wathanathaweekit, Wangdee, Phansri, Noonui, Darsch, Kumsri, Chabot, Sokdun, Seesod, Rooplek, and Mongkoltanaruk