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Cognomen Blonder (Blonder
, Blunder
) , throughout the world, is a rare last name. The last name Blonder is characteristic of Israel, where it is quite a rare surname, Austria, where it is a rare surname, and Venezuela. Not in comparison with a country's population, it is commonest in the United States, Israel, and Germany. Much less frequently, Blonder is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Blonder | Canada, Venezuela, Israel, United States, Germany |
| Blunder | Austria, Indonesia, United States, Germany, South Africa |