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Cognomen Oender (Önder
, Oender
) , all around the world, is a common family name. The cognomen Oender is habitual in Turkey, where it is quite a common surname, Austria, where it is quite a rare surname, and Germany. Also, Oender is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Önder | Turkey, Sweden, Austria, Germany, Azerbaijan |
| Oender | Turkey, Austria, United States, China, Germany |