Black diamond rattlesnake

Black diamond rattlesnake may refer to:


 * Crotalus o. oreganus, also known as the Pacific rattlesnake, a venomous pitviper subspecies found from British Columbia, Canada, south through the United States into California
 * Crotalus cerberus, also known as the Arizona black rattlesnake, a venomous pitviper species found in the southwestern United States
 * Crotalus helleri, also known as the Southern Pacific rattlesnake, a venomous pitviper species found in South-West California and south into Baja California