All around the world, จวงจันทร์ (จวงจันทร์ 
, Juangjan , Juangchan ) is a rare dominantly feminine, but infrequently boy's forename. The given name จวงจันทร์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare dominantly girly, but infrequently masculine name. Likewise, จวงจันทร์ is the last name as well as the forename.