Lake Agnes is a small mountain lake in the Banff National Park of Alberta, Canada. It has a surface area of 0.052 km2 and is located approximately 3.5 km hiking distance from Lake Louise. A teahouse is situated along the eastern shore at an elevation of 2134 metres. A hiking trail continues down the northern shore, making a 180° turn before ascending to the Big Beehive. Just before the trail starts the arc, a scrambling route up Mount Niblock can be found.