The Parisii were Celtic Iron Age people who lived on the banks of the river Seine (in Latin, Sequana) in Gaul from the middle of the third century BC until the Roman era. With the Suessiones, the Parisii participated in the general rising of Vercingetorix against Julius Caesar in 52 BC. Before the Roman period the Parisii had their own gold coinage.
Their chief city (oppidum) was on the site of Lutetia, which later became a moderately important city in the Roman province of Gallia Lugdunensis and ultimately the modern city of Paris, whose name is derived from theirs. According to Caesar's writings, when the Romans entered to this territory, the Parisii started burning down their own towns for they are willing to give up these possessions rather than it would be taken by the Romans.