Surname Ottoy (Ottoy 
) , around the world, is a rare family name. The cognomen Ottoy is characteristic of Belgium, where it is quite a rare surname, Norway, where it is a very rare surname, and Australia. In absolute terms, the name is most common in Belgium, Indonesia, and the United States. Very seldom, Ottoy is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Ottoy | Australia, Philippines, United States, Belgium, Indonesia |
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pierre ottoy (b. 1750) |
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| denise ottoy BE (b. 1935) |
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| julie ottoy researcher ORCID ID = 0000-0002-9879-7497 |
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| emile ottoy researcher |
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| sam ottoy researcher |
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| yannick ottoy |
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| marcel ottoy BE |
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Mr, Lies, Luna, Jana, Joey, Nick, Elke, Henk, Flor, Inge, Ilse, Megan, Amber, Avery, Cindy, Katja, Peter, Robbe, Roger, Danny, Dries, Laura, Lisa, Lars, Dirk, Dawn, Ms, Jo, Sam, Ben, Kat, Luc, Jan, Jen, Tim, Wim, Lieve, Marc, Andy, Anne, Anja, Arne, Bart, Bang, Bram, Paul, Roel, Rick, Alex, and Johan