Last name Roch (Roch 
, ロック 
, 罗奇 
, among others...) , in the world, is a common cognomen. The family name Roch is habitual in Switzerland, where it is quite a common surname, France, where it is quite a rare surname, and Poland. Not in comparison with a country's population, the name is most common in France, Germany, and Poland. Also, Roch is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Roch | Canada, Poland, France, Democratic Republic of the Congo, Germany |
| ロック | Japan |
| 罗奇 | China |
| Рош | Belarus, Kazakhstan, Russia, Ukraine |
| Роч | Russia |
| Рох | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| werner roch (b. 1101) |
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roch de montpellier Christian saint, FR (b. 1295) |
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| roch le baillif physician, FR (b. 1540) |
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| roch le baillif de la rivière (b. 1540) |
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| hercules roch (1598-1648) (b. 1598) |
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| caspar roch (b. 1595) |
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| cornelis roch (1630-1681) (b. 1630) |
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| roch solari (b. 1660) |
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roch zbijewski (b. 1710) |
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| roch hamelinck 12 Oct 1679 Gent - 13 Jun 1761 (b. 1679) |
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roch-ambroise cucurron sicard French abbé and instructor of the deaf, FR (b. 1742) |
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| christian roch (b. 1684) |
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roch-étienne de vichy French vicar general, politician and cleric, FR (b. 1753) |
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roch godart French officer (1761-1834), FR (b. 1761) |
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| roch hyacinthe du hautoy French politician (1731-1814), FR (b. 1731) |
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