M3 Aquatics Masters (M3A) is a USA Swimming affiliated swim club in Chicago.

M3 Aquatics Masters, known as M3A, is a USA Swimming affiliated swim club located in Chicago, Illinois. The organization provides a safe and secure aquatics environment for athletes ranging from developmental levels to national and international competition. Triathletes and open water athletes are also welcome to join. M3A was formed in 2020 in response to families across Chicagoland needing a club capable of addressing the uncertainty at that time. Recognizing its unique position on the south side of Chicago in Hyde Park, the coaching staff established the club as a community-based entity that emphasizes the development of the whole athlete. Practice sessions are held at the Illinois Institute of Technology Keating Center Ekco Pool. Wednesdays and Fridays offer sessions from 6:00 p.m. to 7:30 p.m., while Sundays feature practice from 9:00 a.m. to 10:30 a.m. The club focuses on building a supportive community while preparing swimmers for various competitive challenges.