Caymus (also, Caymas) is a former settlement in Napa County, California.

[1] It lay at an elevation of 105 feet (32 m).

[1] Caymus was located on the Southern Pacific Railroad, 1.5 miles (2.4 km) southeast of Rutherford.

[2] It was located on Rancho Caymus, a Mexican land grant, a very notable wine-producing area.

This Napa County, California-related article is a stub.