Grand Centre, now known as Cold Lake South, is a former town in Alberta, Canada, that originally incorporated in 1957.

Sixteen months later, it incorporated as the Town of Grand Centre on April 1, 1958.

The amalgamation also included the absorption of the adjacent community of Medley to the west on CFB Cold Lake by way of a concurrent annexation.

[1] Just prior to amalgamation, the Town of Grand Centre recorded a population of 4,176 in the 1996 census.

Over the next 20 years, Cold Lake South grew to a population of 6,148 according to the 2016 census.