Nathan Matthew Cooper is a Canadian politician who was elected in the 2015, 2019, and 2023 Alberta general elections to represent the electoral district of Olds-Didsbury-Three Hills in the 29th, 30th, and 31st Alberta Legislatures. Cooper was a municipal councillor in Carstairs, Alberta prior to being elected to the Legislative Assembly. Cooper also served as Chief of Staff to the Wildrose Official Opposition caucus.

The Legislative Assembly of Alberta is the deliberative assembly of the province of Alberta, Canada. It sits in the Alberta Legislature Building in Edmonton. Since 2012 the Legislative Assembly has had 87 members, elected first past the post from single-member electoral districts. Bills passed by the Legislative Assembly are given royal assent by the lieutenant governor of Alberta, as the viceregal representative of the King of Canada. The Legislative Assembly and the Lieutenant Governor together make up the unicameral Alberta Legislature.