- The International Championship of High School A Cappella (ICHSA) is an annual competition held in New York City. It is considered one of the most prestigious glee club competitions in the world.
- The Show Choir Nationals (SCN) is a competition held in Orlando, Florida. It is the largest show choir competition in the world, with over 1,000 schools participating each year.
- The Great American Sing-Off (GASO) is a reality television competition that features a cappella groups from across the United States. The competition is televised on NBC.
- The World Choir Games is an international competition held every two years. It is the largest choral competition in the world, with over 20,000 singers participating from over 100 countries.