Cognomen Blok (Blok 
, Block , بلوك 
, and others...) , worldwide, is a common family name. The surname Blok is characteristic of Western Europe, particularly Netherlands, where it is quite a common surname, Monaco, and Belgium (explore the name in all countries). In absolute terms, it is the most numerous in the United States, Germany, and Netherlands. Much less frequently, Blok is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Blok, Block | Belgium, Netherlands, Poland, United States, Germany |
| بلوك | Iran, Syria, Morocco, Sudan, Egypt |
| Bloc | Brazil, United Kingdom, Belgium, United States, France |
| Блок | Kyrgyzstan, Russia, Kazakhstan, Ukraine, Belarus |
| בלוק | Israel |
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daniel blok German artist (1580-1660), DE (b. 1580) |
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roelof blok (b. 1712) |
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b. blok politician (1756-1818), NL (b. 1756) |
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willem blok politician (b. 1778) |
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| anthony blok (b. 1737) |
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p. j. blok Dutch historian (1855-1929), NL (b. 1855) |
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| reinier blok politician, NL (b. 1821) |
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anthony johannes blok NL (b. 1868) |
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| david blok (b. 1823) |
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johannes assuerus blok (b. 1876) |
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t.h. blok South African writer, ZA (b. 1897) |
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hendrik blok Dutch politician, NL (b. 1898) |
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| cornelis johannes blok Naval officer, NL (b. 1861) |
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| jacob blok Military officer (1864-1943), NL (b. 1864) |
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stanisław blok Polish fighter pilot and officer, PL (b. 1916) |
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