| Aleksandr Korkin | |
| Birth Date: | 3 March 1837 |
| Birth Place: | Zhidovinovo, Vologda Governorate, Russian Empire |
| Nationality: | Russian |
| Death Place: | Saint Petersburg, Russian Empire |
| Field: | Mathematician |
| Work Institution: | St Petersburg University |
| Alma Mater: | St Petersburg University |
| Doctoral Advisor: | Pafnuty Chebyshev |
| Doctoral Students: | Yegor Zolotarev |
| Known For: | Partial Differential Equations |
Aleksandr Nikolayevich Korkin (Russian: Александр Николаевич Коркин; –) was a Russian mathematician. He made contribution to the development of partial differential equations, and was second only to Chebyshev among the founders of the Saint Petersburg Mathematical School. Among others, his students included Yegor Ivanovich Zolotarev.