Rugby union in the United States is played at youth, high school, college, amateur, professional, and international levels and governed by USA Rugby. There were over 125,000 players registered with USA Rugby as of 2016. Over 2,500 rugby union clubs exist around the country, including those who are part of college rugby. Professional club competition has existed as Major League Rugby (MLR) since 2017.

The USA Sevens is a rugby sevens tournament held annually during March in the United States. The USA Sevens is the largest annual rugby competition in North America, drawing over 60,000 fans, and is broadcast live in the United States by ESPN. The USA Sevens was introduced in 2004, originally in the Los Angeles suburb of Carson, California. The event moved to San Diego in 2007, and from there moved to Sam Boyd Stadium in Las Vegas in 2010. It then spent the entire decade of the 2010s in Las Vegas before returning to Carson in 2020. The USA Sevens tournament features 16 teams representing countries from every inhabited continent, including the host, the U.S. national team.