サン・ステファノ条約
The 1878 Treaty of San Stefano (; Peace of San-Stefano, ; Peace treaty of San-Stefano, or ) was a treaty between the Russian and Ottoman empires signed at San Stefano, then a village west of Constantinople (present-day İstanbul), on by Count Nicholas Pavlovich Ignatiev and Aleksandr Nelidov on behalf of the Russian Empire and by Foreign Minister Saffet Pasha and Ambassador to Germany Sadullah Bey on behalf of the Ottoman Empire. The treaty ended the Russo-Turkish War, 1877–78.