Strathcona-Westmin Provincial Park is a 33 km² provincial park on Vancouver Island in British Columbia, Canada. It is located at the southern extremity of Buttle Lake and is completely surrounded by the much larger and more extensively protected Strathcona Provincial Park. Strathcona-Westmin Provincial Park contains the copper, gold and zinc-producing Myra Falls Operations, which is owned by NVI Mining Ltd., a wholly owned subsidiary of Breakwater Resources Limited.