The Folsom South Canal is an aqueduct in Northern California in the United States.

The canal diverts water from the American River at Nimbus Dam in Sacramento County and travels about 26.7 miles (43.0 km) in a southerly direction, terminating near Clay, about 10 miles (16 km) northeast of Lodi.

The canal is operated by the U.S. Bureau of Reclamation, as part of the Auburn-Folsom South Unit of the Central Valley Project.

It is also connected to the Mokelumne Aqueduct, which provides a large portion of the San Francisco Bay Area's water supply.

[2] The canal provides water to about 7,000 acres (2,800 ha) of farmland, with $12 million in annual revenue.