Vaca

Vaca may refer to:

People

 * Vaca (surname)

Geography

 * Vaca Mountains, a mountain range in Napa County, California
 * Vaca Díez Province, Bolivia
 * Vaca Mare River, a tributary of the Siriu River in Romania
 * Vaca Mică River, a tributary of the Siriu River in Romania
 * Mount Vaca, northern California
 * Key Vaca, an island in the middle Florida Keys
 * Vaca, the former name for Crișan village, Ribița Commune, Hunedoara County, Romania

Other uses

 * Vaca Valley Railroad, operated at Vacaville, California in the late 19th century
 * VacA a Helicobacter pylori protein
 * Cattle, vaca is the Spanish word for cattle.