A power play is a term used in sports, particularly in ice hockey, to describe a period of play where one team has a numerical advantage in players, usually due to a rule violation by the opposing team. In ice hockey, a team is considered to be on a power play when at least one opposing player is serving a penalty, and the team has a numerical advantage on the ice. The duration of a power play is based on the type of penalty committed, with a minor penalty resulting in the player sitting in the penalty box for two minutes, and a major penalty giving the opposing team five minutes of power play. Power plays can be exciting and challenging situations for the short-handed team.

It is worth noting that the term "power play" can also be used in a broader sense to describe a military, diplomatic, political, or administrative maneuver in which power is brought to bear.