Cactus Lake is a Saskatchewan hamlet located about 8 kilometres (5.0 mi) from the Alberta-Saskatchewan border. Nearby communities include Macklin, Luseland and Major. The histories of the families of Cactus Lake and surrounding communities are detailed in Prairie Legacy: Grosswerder and Surrounding Districts, by the Grosswerder and Districts New Horizons Heritage Group, published in 1980.

Notable people

Notable people from Cactus Lake include:

• Donald Oborowsky, president and chief executive officer of Edmonton-based Waiward Steel Fabricators, Ltd.
• Fr. Ronald Rolheiser, president of the Oblate School of Theology in San Antonio, Texas,