Rattlesnake Island

Rattlesnake Island may refer to:

• Rattlesnake Island (Clear Lake), in Lake County, California
• A previous name for Terminal Island, in Los Angeles County, California
• Rattlesnake Island (Lake Erie), in Ohio
• Rattlesnake Island (New Hampshire), in Lake Winnipesaukee
• Rattlesnake Island (Okanagan Lake), in British Columbia
• Rattlesnake Island (Queensland), in Halifax Bay, used for bombing practice