The Liga Medicorum Homeopathica Internationalis (LMHI) is an international homeopathic medical society established in Rotterdam, September 10, 1925, under the terms of the Swiss Civil Law, stipulating Geneva as its registered office.

The official bodies of the LMHI, frequently termed simply the Liga, include the Executive Committee, the General Secretariat and the International Council which meet annually.

The Executive Committee is composed of the President, Vice President, Immediate Past President, General Secretary, Veterinary Treasurer, and the other secretaries (for Archives, Education, Pharmacy, Public Relations Research); it manages the business of the association. The International Council is the highest authority of the association: it is conmposed of the National Vice-Presidents, the links between the LMHI and the national community of homeopathic doctors, pharmacists, veterinarians, etc.