Kuznetsk (Russian: Кузне́цк) is a town in Penza Oblast, Russia.
Kuznetsk may also refer to:
- Kuznetsk, former name of Novokuznetsk, a city in Kemerovo Oblast in south-western Siberia
- Kuznetsk Basin, a large Russian coal mining region in southwestern Siberia
- Kuznetsk Depression, a geological landform in south-central Siberia