Last name Hastoy (Hastoy 
) , across the world, is a rare surname. The last name Hastoy is characteristic of Uruguay, where it is a rare surname, France, and Argentina, where it is a very rare surname.
| VARIANT | COUNTRY |
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| Hastoy | Argentina, United Kingdom, France, United States, Uruguay |
| fabien hastoy FR (b. 1869) |
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gracianne hastoy French writer, FR (b. 1968) |
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| benoit hastoy researcher, ORCID id # 0000-0003-1244-7857 (b. 1983) |
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| gustavo hastoy ES |
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| antoine hastoy French rugby union player, FR (b. 1997) |
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Mr, Martine, Marcial, Michele, Antoine, Clement, Cyrille, Beatriz, Patrick, Patrice, Laurent, Nicolas, Florent, Mathilde, Clément, Philippe, Laetitia, Hélène, Valentin, Federico, Isabelle, Christine, Xavier, Iñaki, Emilia, Joseph, Maia, Peio, Jean, Eric, Xabi, Marie, Mabel, Alain, Bruno, Patxi, Catherine, Paula, Fanny, Ximun, Matias, Mirtha, Michel, Arnaud, Benoit, Pierre, Romina, Didier, Gilda, and Dominique