Family name Cousiño (Cousiño 
) , worldwide, is a rare cognomen. The surname Cousiño is habitual in Latin America and the Caribbean, particularly Paraguay, where it is quite a rare surname, Chile, and Argentina, where it is a rare surname. Much less frequently, Cousiño is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cousiño | Chile, Mexico, Spain, Paraguay, Argentina |
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matías cousiño Chilean coal magnate, patriarch of the wealthy Cousiño family, CL (b. 1810) |
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luis cousiño Chilean politician, CL (b. 1835) |
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carlos cousiño CL (b. 1859) |
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| pedro opaso cousiño Chilean politician, CL (b. 1911) |
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| bárbara cousiño Basketball Player, CL (b. 1996) |
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Ana, Carol, Camii, Bruno, Karen, Paula, Pablo, Paola, Pilar, Ramon, Diego, Laura, Lidia, Lucas, Luisa, Lydia, Jaime, José, Jorge, Jenny, Julio, Thais, Carla, Ariel, Angel, Sofia, Luz, Ema, Fco, Maca, Raul, Ruth, Dana, Liza, Luis, Jose, Nadia, Juan, Elda, Hugo, Ines, Irma, Ivan, Yago, Maria, Marta, Marco, Sonia, Nora, and Nacha