Cognomen 蒙哥 (蒙哥 
, Tattrie 
) , across the world, is a rare surname. The surname 蒙哥 is habitual in Canada, where it is quite a rare surname, New Zealand, where it is a rare surname, and Australia, where it is a very rare surname. In absolute terms, the name is most common in Canada, the United States, and Australia. Very seldom, 蒙哥 is the forename as well as the last name.