Old Goat Mountain is a 3,120-metre (10,240 ft) mountain summit located in Kananaskis Country of Alberta, Canada.

Old Goat Mountain is situated near the south end of the Goat Range which is a subrange of the Canadian Rockies, and is the highest point in the Goat Range. The east flank of the mountain is within Spray Valley Provincial Park, whereas the west aspect is within Banff National Park, with the boundary line between the two parks running roughly north-to-south over its summit. Precipitation runoff from the mountain drains to the Spray Lakes Reservoir. Topographic relief is significant as the summit rises over 1,400 meters (4,600 feet) above Spray Lake in three kilometers (1.86 mile). The nearest higher peak is Wind Mountain, 8.9 km (5.5 mi) to the east. Old Goat Mountain can be seen from Alberta Highway 742, the Smith-Dorrien/Spray Trail.

The mountain was named "Old Goat" in memory of Rick Collier, a founding member of the Old Goats Climbing Club, who had climbed this peak numerous times and had written much about it. Collier died in a 2012 mountaineering accident, so the mountain's name has not yet been officially adopted.

Old Goat Mountain is composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sedimentary rock was pushed east and over the top of younger rock during the Laramide orogeny.

Based on the Köppen climate classification, Old Goat Mountain is located in a subarctic climate zone with cold, snowy winters, and mild summers. Winter temperatures can drop below −20 °C (−4 °F) with wind chill factors below −30 °C (−22 °F).

• Scrambles in the Canadian Rockies
• Mountains portal

• Weather forecast for Old Goat Mountain Mountain Forecast
• Spray Valley Provincial Park Alberta Parks
• Banff National Park National Park Service
• Rick Collier Bivouac