In all the world, Deleo (Deleo 
, ديليو) is a very rare unisex given name. The forename Deleo is habitual in Philippines, where it is a very rare predominantly male, but very seldom female name, Italy, where it is a very rare female name, and the United States, where it is an extremely rare primarily male, but very infrequently girly name. Predominantly, Deleo is the last name as well as the forename.