Surname Морлай (Morlaye 
, Морлай 
) , all around the world, is a rare cognomen. The family name Морлай is habitual in Guinea, where it is quite a rare surname, France, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Guinea, France, and the United States. More frequently, Морлай is the forename as well as the last name.