Across the world, Wanjan (วันจันทร์ 
, Wanjan 
, วรรณจันทร์ ) is a rare dominantly girly, but infrequently boy's given name. The forename Wanjan is habitual in Thailand, where it is a rare dominantly feminine, but uncommonly male name, and India, where it is an extremely rare unisex name. Likewise, Wanjan is the last name as well as the forename.