Plopeni (Romanian pronunciation: [ploˈpenʲ]) is a town in Prahova County, Muntenia, Romania, with a population of 6,709 as of 2021.

The town is situated at the northern edge of the Wallachian Plain, at an altitude of 240 m (790 ft), on the right bank of the Teleajen River.

It is located in the central part of Prahova County, 15 km (9.3 mi) north of the county seat, Ploiești.

The Plopeni train station serves the CFR Line 306, which starts at Ploiești South station and ends in Slănic.

This Prahova County location article is a stub.