List of shortest-reigning monarchs

A monarch is the leader of a monarchy, a position usually intended to last for life or until abdication or deposition. The reigns of some monarchs have been notably short. Many of these monarchs acceded to the throne as a result of being first in an order of succession, while other monarchs claimed the throne as a result of conflict. The authenticity of some monarchs has been disputed, especially those who reigned during conflict. Only monarchs with a completed reign lasting less than 3 months are listed here, while popes are mentioned in their own article.