Surname Ollearo (Ollearo 
) , globally, is a very rare family name. The family name Ollearo is characteristic of Argentina, where it is a rare surname, Italy, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Ollearo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ollearo | United States, Italy, Argentina |
| alfonso ollearo Italian general, IT (b. 1885) |
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| ulderico ollearo Italian soldier, IT (b. 1890) |
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Mara, Edward, Hernan, Franco, Odilia, Walter, Massimo, Alberto, Beverly, Domingo, Giorgio, Liliana, Esteban, Honoria, Ignacio, Macarena, Consuelo, Clotilde, Cristina, Riccardo, Fabrizio, Federico, Elvira, Davide, Bianca, Braian, Sean, Alex, Abel, Pier, Raul, Hugo, Olga, Omar, Maria, Mirta, Elizabeth, Rocio, Jorge, Norma, Oscar, Marina, Martha, Melina, Susana, Alides, Adolfo, Atilio, David, and Valentina