All over the world, ทศนันท์ (Thasanan 
, ทศนันท์ , Tosanan 
) is a very rare epicene forename. The first name ทศนันท์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare epicene name. Likewise, ทศนันท์ is the last name as well as the forename.