Surname Ēn (Ian 
, 恩 
, Iaan 
) , globally, is a common last name. The family name Ēn is habitual in Macao, where it is a common surname, Lebanon, where it is quite a common surname, and Malaysia, where it is quite a rare surname. In absolute terms, it is commonest in China, Indonesia, and Kenya. More prevalently, Ēn is the forename as well as the last name.