Cognomen Jantarak (Jantarak 
) , throughout the world, is a rare family name. The last name Jantarak is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, Jantarak is the forename as well as the last name.
Sakol, Jirapan, Jirawan, Naruporn, Worawut, Yuwadee, Maneerat, Songthan, Palothai, Janisata, Jeeranan, Jiraporn, Tippawan, Supawadee, Smithirak, Chavanrat, Kanokphan, Duangporn, Thatsanee, Thitipong, Nathathai, Wuttichai, Jintana, Thanunchai, Ratikan, Kongpob, Sunee, Pinit, Wipha, Suthep, Somjai, Komsan, Panida, Pemika, Rujira, Lalida, Janpen, Intuon, Wisana, Sudarat, Sudawan, Sudtida, Somchai, Srijant, Chotika, Boonjan, Kanyada, Paravee, and Thongtipmrs