Surname Ysasi (Ysasi 
) , in all the world, is a rare family name. The family name Ysasi is characteristic of Peru, where it is a rare surname, Spain, and Argentina, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Peru, the United States, and Spain. Very seldom, Ysasi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ysasi | Mexico, Spain, United States, Peru, Argentina |
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manuel de ysasi ES (b. 1810) |
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victoriano g. de ysasi (b. 1815) |
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| enrique de ysasi Peerage person ID=310485 |
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| maria victorina de ysasi (died 1937) |
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| fernando ysasi ES |
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Mª, Dora, Lexi, Luis, Jake, Jose, Juan, Toni, Tivo, Nora, Noel, Noah, Eloy, Maria, Marta, Mateo, Misty, Mikel, Sally, Sofia, Andre, Angel, Dina, Rick, Rosa, Raul, Sam, Ana, Amy, Ben, Rey, Ric, Leo, Liz, Luz, Joe, Ariel, Eli, Mary, Mike, Sara, Alex, Alba, Aldo, Andy, Anne, Adam, Pete, Eva, and Aaron