Worldwide, Sayfon (Sayfon 
) is a very rare principally feminine, but very infrequently boy's first name. The first name Sayfon is habitual in South-eastern Asia, particularly Thailand, where it is a very rare girly name.
Fon, Maneesot, Sutthiso, Sriwisai, Sreewasut, Chumming, Buadabtip, Kurdkaikaew, Jaiyasan, Tongtearn, Homprasit, Siamphone, Suwanarot, Schroeder, Chaladtum, Kunlawanna, Kullawanna, Tonggamnak, Inthisane, Chiangchin, Chuangchot, Khamphouang, Nuanngam, Thaikan, Gonkomon, Punlomso, Suvan, Budha, Butha, Kamsa, Pango, Hatto, Saboao, Kanphlu, Kaoian, Kunsee, Deemuangpak, Kuedkaikaew, Nilpet, Foyjun, Sangpan, Sukpang, Setthao, Butpakdee, Kunllawanna, Promsuk, Polsoda, Potiwan, Klahan, and Boonchaisan