Surname Otillo (Otillo 
) , in the world, is an extremely rare family name. The cognomen Otillo is habitual in Spain, where it is a very rare surname, Argentina, where it is an extremely rare surname, and the United States. More prevalently, Otillo is the forename as well as the last name.
Auro, Pereira, Rodrigo, Densing, Gatdula, Gelotin, Tobiano, Navarro, Espares, Carillo, Hermosa, Sanjorjo, Delarosa, Gannaban, Leonillo, Cartagena, Dela Rosa, Jaranilla, Turbanada, Fonseca, Dalumpines, Madrona, Escomo, Rufa, Diaz, Juab, Manco, Sayed, Silva, Angub, Bolog, Valera, Gross, Lucob, Erojo, Umali, Suello, Bascon, Laruya, Legara, Nacion, Lamis, and Florentino