Cognomen Avellanet (Avellanet 
) , in the world, is a rare last name. The family name Avellanet is characteristic of Bolivia, where it is a rare surname, the United States, where it is a very rare surname, and New Zealand. In absolute terms, it is commonest in the United States, Bolivia, and Spain. Much less frequently, Avellanet is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Avellanet | Mexico, United States, Spain, New Zealand, Bolivia |
| josep alier i avellanet Spanish businessperson and composer (1903-1953), ES (b. 1903) |
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| chucho avellanet Puerto Rican singer and comedic actor, US (b. 1941) |
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| robert avellanet Puerto Rican singer, US (b. 1975) |
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Ana, Maida, Merce, Sandy, Susan, Alice, Allan, Andre, Angel, Angie, Aureo, Ahmed, Aaron, Chris, Carla, Bruce, Bryan, Karla, Kathy, Paola, Ramon, Ralph, Maria, Ivan, Iris, Fred, Ken, Gil, Lee, Mark, Sara, Alex, Aixa, Pa-S, Rosa, Rose, Robin, Liza, Luis, Jose, Josh, John, Jean, Juan, Tony, Neva, Erin, Vida, Lois, and Danny