In the entire world, ลั่น (Lan 
, ลั่น) is a common unisex given name. The first name ลั่น is characteristic of Macao, where it is a common predominantly feminine, but scarcely male name, Hong Kong, where it is quite a common primarily girly, but very infrequently boy's name, and Israel (explore the name in all countries). In absolute terms, it is commonest in Vietnam, the United States, and China. More frequently, ลั่น is the last name as well as the forename.
ลั่น is also a name for the fictitious and mythical characters: Lan Mandragoran , the fictional character from The Wheel of Time; Lan Fan , the fictional character from Fullmetal Alchemist, Fullmetal Alchemist: Brotherhood and Lan Hikari .