| Birth Date: | 12 February 1790 |
| Birth Place: | Ten Boer, Netherlands |
| Death Date: | 28 November 1862 (aged 72) |
| Death Place: | Groningen, Dutch Republic |
| Order: | Rector of |
| Office: | University of Groningen |
| Term End: | 1830 |
| Term Start: | 1829 |
| Termstart1: | 1845 |
| Termend1: | 1844 |
Hendrik Nienhuis (12 February 1790 in Ten Boer - 28 November 1862 in Groningen) was a Dutch legal scholar, rector of the University of Groningen in 1829–30 and 1844–45, and a conservative member of the House of Representatives of the Netherlands in 1848, who voted against Johan Rudolph Thorbecke's revision of the Constitution of the Netherlands.[1]