Surname Mengan (梦安 
, 孟安 , Mengan 
) , throughout the world, is a rare family name. The surname Mengan is characteristic of Taiwan, where it is a rare surname, Malaysia, and China, where it is a very rare surname. In absolute terms, it most frequently occurs in China, Taiwan, and India. More prevalently, Mengan is the forename as well as the last name.