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Around the world, ล้าง (Lang , Rinsing , Washaren ) is quite a common unisex forename. The given name ล้าง is characteristic of Gambia, where it is quite a common masculine name, Hong Kong, where it is quite a rare gender-neutral name, and Senegal, where it is quite a rare male name. Measured by absolute frequency, it is the most numerous in the United States, Vietnam, and Indonesia. More prevalently, ล้าง is the last name as well as the forename.
ล้าง is also a name for the fictitious and mythical characters: Lang Sengguan , the Jin Ping Mei character.