Băicoi (Romanian pronunciation: [bəjˈkoj]) is a town in Prahova County, Romania, near the 45th parallel.

Five localities are administered by the town: Dâmbu, Liliești, Schela, Tufeni, and Țintea.

The town is crossed on its southwestern side by the national road DN1, which connects it to the county seat, Ploiești, 18.7 km (11.6 mi) to the southeast and Brașov, 95.3 km (59.2 mi) to the north.

Băicoi commune was declared a town in 1948, at the beginning of the Romanian People's Republic.

When the regions were abolished in 1968, Țintea commune with all its villages was assigned to the town of Băicoi, which became part of Prahova County.