Harenc is an French-language surname brought to England by Huguenot refugees. People with the name include:
- Orgueilleuse d'Harenc, first wife of Bohemond III of Antioch
- Archibald Harenc (1821–1884), English cricketer
- Charles Harenc (1811–1877), English cricketer
- Edward Harenc (1814–1853), English clergyman and cricketer