Cognomen 兰利 (Langley 
, 兰利 
, Langlie 
) , in all the world, is a common surname. The cognomen 兰利 is habitual in Jersey, where it is quite a common surname, the United Kingdom, and Australia. In absolute terms, it most frequently occurs in the United States, the United Kingdom, and Australia. Very seldom, 兰利 is the forename as well as the last name.