Aristeidis Stergiadis (Greek: Αριστείδης Στεργιάδης) (1861, in Herakleion, Crete – 22 June 1949, in Nice, France) was the Greek high commissioner, or governor-general, of Smyrna during the Greek occupation of the city from 1919 to 1922. He was selected for the post by Prime Minister Eleftherios Venizelos, who was a fellow Cretan. Stergiadis was arguably possessed of a strict sense of justice and a high ideal of duty, he lived as a hermit, accepting no invitations and never appearing in society. According to George Horton, Stergiadis informed him that he wished "to accept no favors and to form no ties, so that he might administer equal justice to all, high and low alike."
Aristidis Stergiadis was appointed the High Commissioner of Smyrna in February and arrived in the city four days after the 15 May 1919 landing. Stergiadis immediately went to work in setting up an administration, easing ethnic violence, and making way for permanent annexation of Smyrna. Stergiadis immediately punished the Greek soldiers responsible for violence on 15–16 May with court martial and created a commission to decide on payment for victims (made up of representatives from Great Britain, France, Italy and other allies). Stergiadis took a strict stance against discrimination of the Turkish population and opposed church leaders and the local Greek population on a number of occasions. Historians disagree about whether this was a genuine stance against discrimination or whether it was an attempt to present a positive vision of the occupation to the allies.
This stance against discrimination of the Turkish population often pitted Stergiadis against the local Greek population, the church and the army. He reportedly would carry a stick through the town with which he would beat Greeks that were being abusive of Turkish citizens. Troops would disobey his orders to not abuse the Turkish population often putting him in conflict with the military. On 14 July 1919, the acting foreign secretary sent a long critical telegraph to Venizelos suggesting that Stergiadis be removed and writing that "His sick neuroticism has reached a climax." Venizelos stuck with support of Stergiadis despite this opposition, while the latter oversaw a number of projects planning for a permanent Greek administration of Smyrna.
At one point, Stergiadis interrupted and ended a sermon by the bishop Chrysostomos that he believed to be incendiary. George Horton writes: