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[3] and provides limited fishing[4] ("catch-and-release"), picnicking, and hiking activities.

Swimming[5] and boating[6] are not permitted in the reservoir.

The reservoir was created in 1955 by the construction of the Elmer J. Chesbro Dam [1] 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.