魁北克民主行动党（法语：Action démocratique du Québec，简称：ADQ）是加拿大魁北克省的一个省级政党，在2007年魁北克省选举中当选，同时第一次获得“正式政党地位”，将在魁北克国民大会中取代魁人党作为在野党。但在2008年省选举中遭到惨败，将最大在野党的位置拱手让给魁人党。

The Action démocratique du Québec, commonly referred to as the ADQ was a conservative and right-wing populist provincial political party in Quebec, Canada. On the sovereignty question, it defined itself as autonomist, and had support from both nationalists and federalists. Its members were referred to as adéquistes, a name derived from the French pronunciation of the initials 'ADQ'.