Semín is a village in the Pardubice Region of the Czech Republic. It has an estimated 560 inhabitants.
Semin may refer to:
- Semin, alternative spelling of Syomin, a Russian last name
- Semín, a village in the Pardubice Region of the Czech Republic
- Semin, Indonesia, a subdistrict in Gunung Kidul Regency, Special Region of Yogyakarta, Indonesia
- Semin, Russia, a rural locality (a khutor) in Yakovlevsky District of Belgorod Oblast, Russia