The Medical Association of Lower Saxony (Ärztekammer Niedersachsen, ÄKN) is a public-law professional body based in Hanover, serving physicians and supporting the health system across the German state of Lower Saxony. Its work includes professional development, medical training and continuing education, quality improvement, and guidance on medical law and professional matters. The association provides member services and information for doctors, while also supporting medical assistants through resources on vocational training, further education, events, and funding.

For patients, the ÄKN offers information about its responsibilities, mediation services, advice centres, advance directives, and organ and tissue donation. It also shares updates and professional perspectives through its news service, press resources, newsletters, and the Niedersächsisches Ärzteblatt. The association convenes events, courses, and seminars on subjects ranging from patient safety and intercultural medicine to specialist clinical topics. Through its committees, regional offices, and public communications, the ÄKN contributes to professional exchange, healthcare quality, and discussion of health policy. It also provides information on current issues affecting doctors, medical staff, and healthcare in the region.