In all the world, Tilsa (Tilsa 
) is a rare predominantly feminine, but scarcely boy's given name. The first name Tilsa is characteristic of Latin America and the Caribbean, particularly Panama, where it is a rare feminine name, Argentina, and Peru. In absolute terms, it is the most numerous in India, Argentina, and Peru. Much less frequently, Tilsa is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Tilsa | Poland, Argentina, India, Peru, Venezuela |
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tilsa tsuchiya Peruvian painter (1928-1984), PE (b. 1928) |
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| tilsa tschusiya Peruvian painter, 1936-1984, PE (b. 1936) |
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| tilsa lozano Peruvian-Argentine model, PE (b. 1980) |
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| tilsa otta Peruvian artist, poet, writer, PE (b. 1982) |
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Job, Epakam, Vargas, Flores, Ortega, Walker, Wright, Marquez, Morales, Andrade, Grenier, Vejares, Martinez, Alvarado, Casanova, Bermudez, Boulette, Gonzalez, Triviño, Rodriguez, Hernandez, Fernandez, Newton, Thomas, Lozano, Gaslin, Soto, Acua, Cora, Cruz, Rule, Devi, Diaz, Luna, Oria, Maria, San Martin, Aleuy, Ramos, Reyes, Guima, Gomez, Lopez, Tajes, Molina, Romero, Romine, Rivera, Perez, and Valenzuela