Plassey (now Palashi) is a town in West Bengal, India
It can also refer to:
- Battle of Plassey, fought there in 1757 during the Seven Years War
- Plassey railway station, a stop near the town/Palasi on Indian Railways
- Plassey College, a general degree college in Palasi
- Plassey, County Clare, the estate of Robert Clive, victor of the battle
- Plassey, County Limerick, also named for the battle
- MV Plassey, a freighter named for the locations in Ireland