Surname Lanhir (Lanhir 
, Landheer 
) , globally, is a rare last name. The family name Lanhir is characteristic of Netherlands, where it is quite a rare surname, Switzerland, where it is a rare surname, and Hong Kong. In absolute terms, it is commonest in Netherlands, the United States, and Switzerland. Very seldom, Lanhir is the forename as well as the last name.