Guadalupe Reservoir
Guadalupe Reservoir Show map of California Guadalupe Reservoir Show map of the United States
Location	Santa Clara County, California
Coordinates	37°11′54″N 121°52′36″W / 37.19827°N 121.876659°W / 37.19827; -121.876659
Type	Reservoir
Primary inflows	Guadalupe Creek
Primary outflows	Guadalupe Creek
Basin countries	United States
Max. length	6,600 ft (2,000 m)
Max. width	660 ft (200 m)
Surface area	74 acres (300,000 m2)
Water volume	3,415 acre⋅ft (4,212,000 m3)
Surface elevation	618 ft (188 m)

Guadalupe Reservoir is a reservoir in Santa Clara County, California, United States, about 5 miles (8 km) south of the city of San Jose, California. It is at an elevation of 614 feet (187 m).^[1] It has a surface area of 74 acres (300,000 m²) and a capacity of 3,415 acre-feet (4,212,000 m³). The reservoir is located along Hicks Road on Guadalupe Creek, a tributary of the Guadalupe River. The Guadalupe River was named Rio de Nuestra Señora de Guadalupe on March 30, 1776, by the de Anza expedition, in honor of the Mexican saint who was the principal patron saint of the expedition. Guadalupe dam and reservoir, constructed in 1935, is one of the six original systems approved for construction by voters in 1934.

The California Office of Environmental Health Hazard Assessment (OEHHA) has developed a safe eating advisory for the reservoir, stating no one should eat any fish caught there.^[2]