Nehoiu (Romanian pronunciation: [neˈhoju]) is a town in Buzău County, Muntenia, Romania, with a population of 9,464 as of 2021.

The town administers nine villages: Bâsca Rozilei, Chirlești, Curmătura, Lunca Priporului, Mlăjet, Nehoiașu, Păltineni, Stănila, and Vinețișu.

It lies in a hilly area at the foot of the Curvature Carpathians, on the banks of the Buzău River.

The town is traversed by national road DN10, which crosses the Carpathians, joining Buzău to Brașov.

The train station in Nehoiașu is the terminus for the CFR Line 504, which starts in Buzău.