A recreation room (also known as a rec room, rumpus room, or ruckus room) is a room used for a variety of purposes, such as parties, games and other everyday or casual use. The term is common in the United States and Canada, but is less common in the United Kingdom where the preferred term is games room. Often children and teenagers entertain their friends in the rec room, which is often located in the basement, away from the main living areas of the house. Usually it is a larger space than a living room to have the ability to serve multiple purposes and entertain moderately large groups.

Recreation rooms can vary in themes and styles, but they generally have a basic setup:

Recreation rooms are normally centered around some form of entertainment, typically an audio/video setup. This can consist of something as elaborate as a projection screen with surround sound or something as simple as a base model television.

Couches, pub tables/chairs, bar stools, and recliners may all be used in recreation rooms.