Quinto (fifth) may refer to:
- Quinto (Ponce), a barrio in the municipality of Ponce, Puerto Rico
- Quinto, Switzerland, a municipality in the canton of Ticino
- Quinto, Spain, a municipality in the province of Zaragoza
- Quinto, Italy:
- Quinto Vercellese, Province of Vercelli, Piemont
- Quinto Vicentino, Province of Vicenza, Veneto
- Quinto di Treviso, Province of Treviso, Veneto
- Quinto, the smallest of the tumbadora drums used in the music of Cuba
- Quinto, a five-digit numbers game offered by the Pennsylvania Lottery
- Zachary Quinto, an American actor