Peyto Lake is a glacier-fed lake in Banff National Park in the Canadian Rockies. The lake itself is easily accessed from the Icefields Parkway. It was named for Bill Peyto, an early trail guide and trapper in the Banff area.
- Location: Canada(Alberta)
- Max. length: 2.8 km (1.7 mi)
- Max. width: 0.8 km (0.50 mi)
- Surface area: 5.3 km2 (2.0 sq mi)