The Prahova is a river of Southern Romania, which rises from the Bucegi Mountains, in the Southern Carpathians.

[1][2] It flows into the Ialomița in Dridu Snagov.

[3] The upper reach of the river, upstream of the confluence with the river Azuga is sometimes called the Prahovița.

The basin of the Prahova covers 3,738 km2 (1,443 sq mi),[2][4] which is about 75% of the area of Prahova County.

The following towns and villages are situated along the river Prahova, from source to mouth: Predeal, Azuga, Bușteni, Poiana Țapului, Sinaia, Posada, Comarnic, Nistorești, Breaza, Cornu, Poiana Câmpina, Câmpina, Bănești, Bobolia, Cocorăștii Caplii, Cap Roșu, Novăcești, Florești, Călinești, Cătina, Filipeștii de Târg, Nedelea, Ariceștii Rahtivani, Ezeni, Zalhanaua, Stăncești, Piatra, Stejaru, Pisculești, Tinosu, Miroslăvești, Palanca, Independența, Belciug, Gherghița, Hătcărău, Tufani, Malamuc, Răsimnicea, Rădulești, Adâncata, Patru Frați.