Last name Runt (Ronn 
, Rund 
, Runt 
) , around the globe, is quite a rare surname. The family name Runt is habitual in Finland, where it is quite a rare surname, Czechia, and Denmark. In absolute terms, it most frequently occurs in the United States, Germany, and Finland. Also, Runt is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ronn | United States, Czechia, Democratic Republic of the Congo, Germany, Finland |
| Rund | United States, Czechia, Sweden, Democratic Republic of the Congo, Germany |
| Runt | India, United States, Czechia, Germany, Brazil |
| Рунт | Ukraine, Russia, Kazakhstan |
| bronislava runt (b. 1885) |
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| miloslav runt CZ (b. 1898) |
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| ladislav runt (b. 1920) |
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| james patrick runt (b. 1953) |
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| václav runt CZ (b. 1957) |
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| james runt researcher |
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