Olds is a town in central Alberta, Canada within Mountain View County and the Calgary–Edmonton Corridor. It is approximately 61 km (38 mi) south of Red Deer and 90 km (56 mi) north of Calgary. The nearest towns are Didsbury to the south, Bowden to the north, Sundre to the west and Three Hills to the east. Olds is located at the intersection of Highway 27 and Highway 2A, 5 km (3.1 mi) west of the Queen Elizabeth II Highway. The Canadian Pacific Kansas City's main Edmonton-Calgary line runs through the town.

Alberta Provincial Highway No. 2A is the designation of six alternate routes off Highway 2 in Alberta, Canada. In general, these are original sections of Highway 2, such as the southern portion of Macleod Trail in Calgary. They passed through communities before limited-access freeways were built to shorten driving distance, accommodate heavier volumes and to bypass city traffic. Portions of the alignment of Highway 2A follow the route of the former Calgary and Edmonton Trail.