Cognomen Thanarat (ธนารัตน์ 
, ธนรัตน์ , Thanarat 
, along with others...) , around the world, is a rare family name. The cognomen Thanarat is characteristic of Thailand, where it is a rare surname, Malaysia, where it is an extremely rare surname, and the United States. Much more prevalently, Thanarat is the forename as well as the last name.
Srion, Ketkosol, Ruksasat, Limsuwan, Tantinam, Intharak, Chaiyapan, Chawaphan, Chitpayap, Koonlapatarn, Pansareewong, Papassanobon, Tanapatiphong, Wichinthanasarn, Yongmatawut, Kongsamray, Khositapha, Kitcharoen, Pradubchan, Pisaisawasdi, Yongmetawut, Anantasopachit, Kaeothep, Boonthom, Chinarak, Chaichod, Visan, Wanna, Winya, Sathol, Saomok, Sodsup, Buaban, Srirasa, Benabus, Lapnarongchai, Anantasopajit, Lohapan, Nualpan, Fuengfu, Ipichat, Urairat, Salahong, Shevaruangroj, Sittivong, Subhasaen, Supkhong, Srisakda, Luasomboon, and Chongsuttanamanee