Surname Муллан (Mullan 
, Moollan 
, Муллан 
) , in all the world, is a common last name. The last name Муллан is habitual in Ireland, where it is quite a common surname, Mauritius, where it is quite a rare surname, and the United Kingdom. Measured by absolute frequency, it most frequently occurs in the United Kingdom, the United States, and Ireland. Much less frequently, Муллан is the forename as well as the last name.