Doctor Nâzım Bey or Dr. Nazım (born 1870 in Salonica - died 1926) was an Ottoman politician and doctor. Dr. Nazim played a significant role in the Armenian Genocide and the expulsion of Greeks in Western Anatolia. He was convicted of the attempted assassination of Atatürk in İzmir and hanged in Ankara on 26 August 1926.
He served as the chairman of the Turkish football club Fenerbahçe SK between 1916-18.
From a Dönmeh background, Nazim was born and raised in Salonica; his family were longtime residents of the city, successful in running various businesses, and he himself was the director of a hospital.
Nazim had joined the Young Turks Movement, and when the Greeks occupied Salonica in October 1912 during the Balkan wars, he was imprisoned for eleven months in an Athens prison as a Turkish nationalist. The guards abused him and told him that his family had been killed, and that Constantinople was already occupied, while Anatolia would soon fall to the Greeks. Sent to Izmir after a request by the Committee of Union and Progress, he was deeply troubled by his family's fate (and that of his baby daughter) and the exile from his hometown. In newspaper articles he called attention to Bulgarian atrocities committed against Muslims and "call[ed] for vengeance against the remaining Ottoman Christians". The Ottoman defeat and the ethnic cleansing of Muslims was traumatic for many Young Turks and led to a desire for revenge; Nazim's "transformation from a patriotic doctor into a rabid, vindictive nationalist... symbolized the fate of many others".
Nazim was a leading figure in the Turkification of the Ottoman Empire. He was a member of the Teşkilât-ı Mahsusa (Special Organization in the Ottoman Empire). Many members of this organization eventually participated in the Turkish national movement and had played special roles in the Armenian Genocide.