Fraternal societies
The Royal Society of Medicine maintains fraternal relationships with a number of medical societies overseas.
- Academia Nacional de Medicina de Buenos Aires
- American Academy of Allergy & Immunology
- American Academy of Dermatology
- American Academy of Forensic Sciences
- American Academy of Neurology
- American Academy of Ophthalmology
- American College of Obstetricians and Gynecologists
- American College of Physicians
- American College of Radiology
- American College of Surgeons
- American Academy of Otolaryngology - Head and Neck Surgery, Inc
- American Geriatrics Society
- American Psychiatric Association
- American Society of Anesthesiologists
- American Society of Colon and Rectal Surgeons
- American Society of Plastic and Reconstructive Surgeons
- American Urological Association
- Association of the Scientific Medical Societies in Germany
- College of Medicine of South Africa
- Finnish Medical Society Duodecim
- Medical Society of the District of Columbia
- New York Academy of Medicine
- Royal Australian College of General Practitioners
- Royal Australian and New Zealand College of Obstetricians and Gynaecologists
- Royal Australian and New Zealand College of Psychiatrists
- Royal Australasian College of Physicians
- Royal Australasian College of Surgeons
- Royal Academy of Medicine in Ireland
- Royal College of Physicians and Surgeons of Canada
- San Francisco Medical Society
- Swedish Society of Medicine
