Cognomen Rybach (Rybach 
) , worldwide, is a very rare surname. The surname Rybach is habitual in Switzerland, where it is a rare surname, Germany, where it is an extremely rare surname, and the United States. Much less frequently, Rybach is the forename as well as the last name.
| lászló rybach Swiss geophysicist, CH (b. 1935) |
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| ladislaus rybach HU (b. 1935) |
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