Kangaslampi is a former municipality of Finland. It was consolidated to Varkaus on 1 January 2005.
It is located in the former province of Eastern Finland and is part of the North Savo region. The municipality had a population of 1,611 (31 December 2004) and covered an area of 412.93 km<sup>2</sup> of which 114.12 km<sup>2</sup> is water. The population density was 5.38 inhabitants per km<sup>2</sup>.
The municipality was unilingually Finnish.