| Mount St. Piran | |
| Elevation M: | 2649 |
| Elevation Ref: | [1] |
| Prominence M: | 187 |
| Range: | Bow Range (Canadian Rockies) |
| Listing: | Mountains of Alberta |
| Country: | Canada |
| Region Type: | Provinces |
| Region: | Alberta |
| Part Type: | Protected area |
| Part: | Banff National Park |
| Map: | Canada Alberta |
| Map Size: | 200 |
| Label Position: | right |
| Coordinates: | 51.4214°N -116.2528°W |
| Coordinates Ref: | [2] |
| Easiest Route: | Hiking Trail |
Mount St. Piran is a mountain in Banff National Park near Lake Louise, Alberta, Canada. Located in the Bow River Valley southeast of the Minewakun Lake Valley; northwest of Lake Agnes; between Lake Louise Valley and lower Bath Creek.
It was named in 1894 by Samuel E.S. Allen after Saint Piran, the Patron Saint of Cornwall.[3]
The mountain can be climbed from the eastern side via a hiking trail that branches North off the trail to the Little Beehive. Alternatively, the mountain can be climbed on the SW side from slopes below the SE face of Mount Niblock. Going up one side and down the other completes a loop on the northern side of Lake Agnes.