| Tunuyán | |
| Native Name Lang: | es |
| Settlement Type: | City |
| Pushpin Map: | Argentina |
| Pushpin Map Caption: | Location of Tunuyán in Argentina |
| Coordinates: | -33.5667°N -70°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Argentina |
| Subdivision Type1: | Province |
| Subdivision Type2: | Department |
| Subdivision Name2: | Tunuyán |
| Established Title: | Founded |
| Established Date: | November 25, 1880 |
| Unit Pref: | Metric |
| Elevation M: | 875 |
| Population Total: | 49,132 |
| Population As Of: | 2010 census |
| Population Density Km2: | auto |
| Timezone1: | ART |
| Utc Offset1: | -3 |
| Postal Code Type: | CPA base |
| Postal Code: | M5560 |
| Area Code Type: | Dialing code |
| Area Code: | +54 2622 |
| Blank Name: | Climate |
| Blank Info: | BSk |
| Website: | Official website |
Tunuyán is a city in the west of the province of Mendoza, Argentina, located on the western shore of the Tunuyán River, 800NaN0 south from the provincial capital Mendoza and 1000NaN0 east of the Chilean border. It has 49,132 inhabitants, and is the head town of the Tunuyán Department. Along with the Tupungato Department and the San Carlos Department it makes up the "Valle de Uco" region, which is famous in the Argentine wine industry for its important and modern vineyards and wineries. Investments since the millennium, attracted by the climate, soil, and altitude combination, have transformed the area, making it one of Argentina's most important regions when it comes to high-quality wine production and its associated connoisseur-driven enotourism.