Lambda Chi Alpha

Lambda Chi Alpha (ΛΧΑ), commonly referred to as Lambda Chi, is a collegiate fraternity in North America. With over 300,000 initiates as of 2024, it is the third-largest social fraternity in the world by number of initiates. It has almost 8,700 current undergraduate members affiliated with chapters and associate chapters at 166 colleges and universities in the United States and Canada. Its members may be known variously as Lambda Chis, LXAs, LCAs, Lambdas, or Choppers at different campuses. Lambda Chi Alpha was founded at Boston University in 1909. It is a member of the North American Interfraternity Conference (NIC), which it rejoined in November 2023 after withdrawing from the conference in 2015. Among the largest 15 social fraternities in the world, Lambda Chi Alpha is the youngest. Since 2014, after maintaining its headquarters at various locations in Indiana, Massachusetts, and Pennsylvania, it has been headquartered in Carmel, Indiana, outside Indianapolis.