A Weyr is a type of settlement in the fictional world of Pern, created by author Anne McCaffrey. It serves as a home for dragonriders and their dragons, providing shelter, training, and a place for communal living. Each Weyr is typically located near a suitable area for dragon flight and often features large caverns for housing and other facilities. In a Weyr, the leadership is usually held by a Weyrleader and a Weyrwoman, who are often bonded to the most powerful dragons. The Weyr plays a crucial role in the defense of Pern against threats, particularly the deadly spores known as Thread.