Last name Lopt (Loft 
, Lofthouse 
, Lopt ) , all around the world, is quite a common family name. The surname Lopt is habitual in Denmark, where it is quite a rare surname, the United Kingdom, and Australia. Measured by absolute frequency, it is commonest in the United Kingdom, Bangladesh, and the United States. Very seldom, Lopt is the forename as well as the last name.