Founded in 1990, the Hellenic Medical Association for Obesity (HMAO) is a non-governmental scientific association, operating on a non-profit basis in Athens, Greece. According to its mission statement, its aim is to promote "the scientific research and study of obesity and the metabolic diseases in Greece" as well as "the scientific research in the field of healthy nutrition of the contemporary individual". The HMAO is a member of the European Association for the Study of Obesity (EASO) and the International Association for the Study of Obesity (IASO). It ranks up to 1200 active members from various areas of professional expertise, such as physicians and dietitians, and the Greek general public. 

During the last fourteen years, the HMAO has prepared numerous scientific and non-scientific events, consistently aiming at three main national target groups: 

• Doctors and other professionals who are systematically involved in obesity treatment
• Governmental institutions with direct influence over the formation of public health policy in Greece
• Greek general public