Green Crescent Society


The Turkish Green Crescent Society is a non-governmental organization founded under the name “Hilal-I Ahdar” (Ottoman for “Green Crescent”) on March 5th, 1920, with its headquarters in Istanbul. Its vision is to make Turkey an example and leading country in the fight against addictions, while basing its actions on human dignity. The Green Crescent is a public health organization that takes preventive and rehabilitative actions to protect the society and youth from bad habits without discrimination and to fight against tobacco, alcohol, drug, gambling and technology addictions using scientific methods as well as respecting ethnic and moral values.

Turkish Green Crescent Society was founded by patriotic people and intellectuals (Ord. Prof. Mazhar Osman and his friends) from a diverse set of backgrounds in 1920, response to the British attempts to distribute booze and drugs free of charge in Istanbul in an effort to undermine the resistance against the occupation. The founders sensed the upcoming dangers of alcohol and drug addiction that resulted decline in the resistance against the occupation. The patriotic intellectuals established the “Green Crescent”, “Hilal-i Ahdar” in Istanbul in order to warn Turkish society. The official name of the association is “Türkiye Yeşilay Cemiyeti”, “Turkish Green Crescent Society”.

The Green Crescent is a non-profit and non-governmental organization that empowers youth and adults with factual information about drugs so they can make informed decisions against different kind of addictions including alcohol, tobacco, drug, gambling etc. The Green Crescent was established in 1920 and given the status of Public-Beneficial Society (public beneficial society status is given to the organizations that serve for public benefits) by the Turkish government in 1934.

Today, the Green Crescent has become a trademark in fight against addictions within the country by 24 branches and 64 representatives operating in numerous cities.