Globally, Cail (Cail 
, Cais 
) is a rare mostly boy's, but seldom feminine forename. The forename Cail is habitual in Romania, where it is a rare male name, Australia, where it is a very rare masculine name, and Italy, where it is a very rare epicene name. Measured by absolute frequency, it is commonest in the United States, India, and Romania. More prevalently, Cail is the last name as well as the forename.