Oronzo is an Italian personal name, derived from the Latin Orontius.

It can refer to:

Saint Oronzo (Orontius) Oronzo Vito Gasparo, American artist Don Oronzo Squarciafico Pinelli Ravaschieri Fieschi, 5th Prince of Belmonte Oronzo Pugliese, Italian football manager Oronzo Reale, Italian politician