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Family name 兰 (兰 , Lan , 란 ) , around the globe, is a prevalent surname. The last name 兰 is habitual in Malaysia, where it is a common surname, Macao, and China, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, the name is most common in China, Malaysia, and Vietnam. Also, 兰 is the forename as well as the last name.