|Location||Santa Clara County, California|
|Primary inflows||Llagas Creek|
|Primary outflows||Llagas Creek|
|Catchment area||19.5 sq mi (51 km2)|
|Basin countries||United States|
|Managing agency||Santa Clara Valley Water District|
|Surface area||328 acres (1.33 km2)|
|Water volume||8,086 acre⋅ft (0.010 km3)|
|Surface elevation||531 ft (162 m)|
Chesbro Reservoir is an artificial lake located three miles (5 km) west of Morgan Hill, California, in the United States. A 232-acre (94 ha) county park surrounds the reservoir and provides limited fishing ("catch-and-release"), picnicking, and hiking activities. Swimming and boating are not permitted in the reservoir.
The reservoir was created in 1955 by the construction of the Elmer J. Chesbro Dam  across Llagas Creek in the valley west of El Toro peak. The reservoir and dam were named after Elmer J. Chesbro, a local doctor who was president of the Santa Clara Valley Water Conservation District (now the Santa Clara Valley Water District) at the time.
- List of dams and reservoirs in California
- List of lakes in California
- List of lakes in the San Francisco Bay Area
- "Listing of Jurisdictional Dams in California" (PDF). California Department of Water Resources. Retrieved July 3, 2017.
- "Chesbro Reservoir". Geographic Names Information System. United States Geological Survey.
"Santa Clara County Parks: Chesbro Reservoir". County of Santa Clara. Retrieved 2014-09-07.
The reservoir, which captures water from the Llagas Creek watershed, is used to recharge supplies in underground aquifers that provide water to be pumped from wells for residential, agricultural, and industrial uses.
- "Santa Clara County Parks: Fishing Guidelines". County of Santa Clara. Retrieved 2017-07-02.
"Santa Clara County Parks: Swimming Restrictions". County of Santa Clara. Retrieved 2017-07-05.
Swimming or wading is NOT permitted in County Parks.
"Santa Clara County Parks: Boating Guidelines". County of Santa Clara. Retrieved 2017-07-03.
Certain reservoirs and bodies of water in Santa Clara County are closed indefinitely to all vessels and floats - these include: Almaden, Chesbro, Sandy Wool, Cottonwood, Grant, Guadalupe, Uvas and Vasona.
- Santa Clara County Parks (includes directions and history)