Cognomen بايرون (Byron 
, Bhairon 
, Pyron ) , all over the world, is a common surname. The family name بايرون is characteristic of Latin America and the Caribbean, particularly Saint Kitts and Nevis, where it is a common surname, Saint Vincent and the Grenadines, and Nicaragua, where it is quite a common surname (explore the name in all countries). In absolute terms, it is commonest in the United States, Nicaragua, and the United Kingdom. More frequently, بايرون is the forename as well as the last name.