In the world, วาฤทธิ์ (วาฤทธิ์ 
) is a rare mostly boy's, but uncommonly feminine forename. The first name วาฤทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare mostly masculine, but uncommonly female name. Likewise, วาฤทธิ์ is the last name as well as the forename.