Family name วิบูลเพ็ญ (วิบูลเพ็ญ 
) , globally, is an extremely rare cognomen. The family name วิบูลเพ็ญ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, วิบูลเพ็ญ is the forename as well as the last name.