Cognomen Николлс (Nicholls 
, Николлс 
) , across the world, is a common surname. The cognomen Николлс is characteristic of Barbados, where it is a common surname, Saint Vincent and the Grenadines, where it is quite a common surname, and Guernsey (explore the name in all countries). In absolute terms, it is commonest in the United Kingdom, Australia, and the United States.