Family name Rek (Rek 
, Rack 
, เร็กซ์ 
) , in all the world, is a common surname. The cognomen Rek is habitual in Suriname, where it is quite a common surname, Slovenia, where it is quite a rare surname, and Czechia. Measured by absolute frequency, it is the most numerous in Germany, Algeria, and Poland. Also, Rek is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rek | Germany, Egypt, Algeria, United States, Poland |
| Rack | Germany, Egypt, United States, Myanmar, Poland |
| เร็กซ์ | Thailand |
| Рек | Ukraine, Russia, Kyrgyzstan, Belarus |
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stanisław rek master sergeant of the Polish Army, PL (b. 1893) |
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| františek rek CZ (b. 1883) |
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| leon rek Needs Major Changes (b. 1905) |
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| tadeusz rek Polish lawyer and judge (1906-1968), PL (b. 1906) |
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| wanda rek Polish Righteous Among the Nations, PL (b. 1911) |
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| josef rek Czechoslovak teacher, CZ (b. 1912) |
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| leopold rek CZ (b. 1909) |
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| konstanty rek PL (b. 1914) |
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| wacław rek Needs Major Changes (b. 1928) |
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| henryk marian rek Polish canoeist, PL (b. 1930) |
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| bolesław rek PL (b. 1929) |
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| pelagia rek PL (b. 1935) |
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| jiří rek (b. 1949) |
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| branko rek SI (b. 1964) |
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| aleksandra rek director and filmmaker |
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