Oratio \o-ra-tio\ as a boy's name is a variant of Horace (Latin) and Orazio (Italian), and the meaning of Oratio is "prayer".

The baby name Oratio sounds like Artie and Arto. Other similar baby names are Horatio, Oran, Orrin, Orin, Oral, Orion, Oro, Orphie, Orfeo and Orric.