List of irredentist claims or disputes

This is a list of irredentist claims or disputes. Irredentism is any political or popular movement that seeks to claim or reclaim and occupy a land that the movement's members consider to be a "lost" (or "unredeemed") territory from their nation's past. Not all territorial disputes are irredentist, although they are often couched in irredentist rhetoric to justify and legitimise such claims both internationally and within the country. What is and is not considered an irredentist claim is sometimes contentious.