Barts and The London Alumni Association (BATLAA) provides continuing links between all former Barts and The London School of Medicine and Dentistry medical and dental students, and the School of Medicine and Dentistry.

BATLAA was formed in 2000 following the merger of The Barts Alumni Association, The London Hospital Medical Club and The London Hospital Dental Club. All former students who qualified from The London Hospital Medical College, The London Hospital Dental College and St Bartholomew's Hospital Medical College, as well as the current School of Medicine and Dentistry, automatically become members of BATLAA.

The Association supports members with the organisation of bespoke reunions, support special interests, regional and overseas groups including Barts and The London Dental Club (formerly The London Hospital Dental Club); the St Bartholomew's Decennial Clubs; and the Barts and The London Cambridge and Oxford Graduates' Club.

The Association also supports scholarships, student opportunities and research through its Benevolent Funds and the Queen Mary University of London Foundation.