Coso

Coso or COSO may refer to:


 * Coso (former settlement), California
 * Coso Junction, California
 * Coso Range, in eastern California
 * Coso Hot Springs, in the Coso Volcanic Field
 * Coso Volcanic Field, in southeastern California
 * Coso artifact, found in 1961
 * Coso people, Native American tribe associated with the Coso Range

COSO

 * Cash or share option, a warrant where the settlement is either cash or physical delivery of shares
 * Committee of Sponsoring Organizations of the Treadway Commission, to combat corporate fraud