Surname วรรณจันทร์ (Wanchan 
, Wanjan , วรรณจันทร์ ) , worldwide, is a rare cognomen. The cognomen วรรณจันทร์ is characteristic of Thailand, where it is a rare surname, Malaysia, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Thailand, China, and Malaysia. Also, วรรณจันทร์ is the forename as well as the last name.