Last name Casasús (Casasús 
) , all around the world, is a very rare family name. The last name Casasús is characteristic of Spain, where it is a very rare surname, and Mexico, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Casasús | Mexico, Spain |
| josé joaquín casasús writer, ES (b. 1733) |
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| justo ramón casasús ES (b. 1822) |
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| carmen del campo casasús Spanish politician, ES (b. 1947) |
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| casasús i researcher |
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| jose casasús actor |
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Mª, Jesús, Núria, Emilio, Mariano, Mónica, Ariadna, Cecilia, Natalie, Eduardo, Enrique, Vicente, Ignacio, Álvaro, Salvador, Carolina, Génesis, Alejandro, Carmen, Benjamín, Carlos, Albert, Ana, Marc, Luis, Emma, Fice, Olga, Marta, Asier, Karla, Laura, Jaime, José, Jorge, Marcos, María, Silvia, Sofía, Arturo, and Montserrat