Cognomen Leleng (Leleng 
) , around the globe, is a rare last name. The last name Leleng is habitual in Indonesia, where it is a rare surname, Malaysia, where it is a very rare surname, and New Zealand. In absolute terms, this name is the most popular in South-eastern Asia, particularly Indonesia, Philippines, and Malaysia. More prevalently, Leleng is the forename as well as the last name.