Mount Blakiston is a mountain in the southwestern corner of Alberta, Canada and the highest point within Waterton Lakes National Park.

Blakiston's closest neighbours include Mount Hawkins 2,685 m (8,809 ft) directly to the west along a connecting ridge and Mount Lineham 2,728 m (8,950 ft) to the south.

The mountain was named in 1858 for Thomas Blakiston, a member of the Palliser Expedition.

[1][6] The Lineham Creek hiking trail passes along the foot of the southern slopes of the mountain and for capable scramblers, Blakiston's rubbly but steep southern slopes provide a suitable line of ascent.

[4] Like other mountains in Waterton Lakes National Park, Mount Blakiston is composed of sedimentary rock laid down during the Precambrian to Jurassic periods.