Surname Eill (Eill 
) , globally, is a very rare cognomen. The last name Eill is habitual in Ireland, where it is a rare surname, the United States, where it is a very rare surname, and Canada, where it is an extremely rare surname. In absolute terms, this name is the most popular in the United States, China, and Ireland. Also, Eill is the forename as well as the last name.