All over the world, Roseus (Roseo 
, Roseus 
, Róseo ) is a rare principally male, but very infrequently female given name. The forename Roseus is habitual in Italy, where it is a rare predominantly male, but very infrequently girly name, Philippines, and Tanzania, where it is a very rare boy's name. Measured by absolute frequency, it is the most numerous in Philippines, Italy, and Brazil. Likewise, Roseus is the last name as well as the forename.