Waterton Park, commonly referred to as Waterton, is a hamlet in southwestern Alberta, Canada within Improvement District No. 4 Waterton.
It is located at the southwestern terminus of Highway 5, approximately 54 kilometres west of the Town of Cardston and 55 kilometres south of the Town of Pincher Creek. This hamlet is north of Glacier National Park in Montana. It has an elevation of 1,280 metres.
The hamlet is located in Census Division No. 3 and in the federal riding of Lethbridge.