Last name Riby (Riby 
, Рибий 
) , in the entire world, is a rare surname. The family name Riby is characteristic of Czechia, where it is a rare surname, the United Kingdom, and Sweden. Measured by absolute frequency, it is the most numerous in the United Kingdom, France, and Indonesia. Likewise, Riby is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riby | United Kingdom, Czechia, France, India, Indonesia |
| Рибий | Ukraine, Russia |
| thomas riby (born 1758) (b. 1758) |
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| george riby Peerage person ID=556498 |
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| leigh riby researcher |
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| jacques riby researcher |
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| deborah riby researcher |
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| philip riby researcher |
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