Family name 朗朗 (Langlang 
, 朗朗 ) , worldwide, is a rare cognomen. The surname 朗朗 is habitual in South-eastern Asia, particularly Indonesia, where it is a rare surname, Philippines, where it is a very rare surname, and Cambodia. Not in comparison with a country's population, this name is the most popular in Indonesia, China, and India. More frequently, 朗朗 is the forename as well as the last name.