Last name Rényi (Renyi 
, ريني 
, Rényi ) , in all the world, is a rare family name. The last name Rényi is habitual in Hungary, where it is quite a rare surname, Slovakia, and Singapore, where it is a very rare surname. In absolute terms, the name is most common in Hungary, Slovakia, and the United States. More frequently, Rényi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Renyi | Taiwan, Slovakia, Hungary, United States, China |
| ريني | Iraq, Palestinian Territory |
| Rényi | Hungary |
| רניי | Israel |
| rényi györgy Hungarian military officer (1829-1891), HU (b. 1829) |
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| rényi dezső Hungarian lawyer, local politician, chief executive officer (1861-1928), HU (b. 1861) |
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| rényi károly Hungarian bookseller, publisher (1866-1924), HU (b. 1866) |
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rényi tamás Hungarian film director (1929-1980), HU (b. 1929) |
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| rényi aladár (1885-1944) composer, lawyer, HU (b. 1885) |
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| rényi ervin HU (b. 1889) |
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rényi katalin Hungarian painter, HU (b. 1951) |
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| rényi-vámos ferenc Hungarian physician (1910-1998), HU (b. 1910) |
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| rényi péter Hungarian journalist (1920-2002), HU (b. 1920) |
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| rényi alfréd Hungarian mathematician (1921-1970), HU (b. 1921) |
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| rényi kató Hungarian mathematician (1924-1969), HU (b. 1924) |
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| magda jelínková-rényiová writer, editor, SK (b. 1926) |
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| rényi erzsébet Hungarian high school teacher, HU (b. 1927) |
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| rényi andrás hungarian art historian, HU (b. 1953) |
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| pierre rényi (b. 1946) |
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