Surname Морван (Morman 
, Морван 
) , all around the world, is quite a rare family name. The last name Морван is habitual in Romania, where it is quite a rare surname, the United States, where it is a rare surname, and Croatia. Measured by absolute frequency, it is the most numerous in the United States, Romania, and the United Kingdom. Likewise, Морван is the forename as well as the last name.