With the opening of Black Sea to the international trade, the ships sailing in the Black Sea have increased the importance of cities located on the South Black Sea coast. Sinope, one of these cities and an important city with its sheltering harbor since ancient times, has also taken advantage of these increasing commercial activities and was in the spotlight of foreign countries. Russia, one of these foreign countries, had continued its existence there until the First World War by assigning a consul to Sinope after the Treaty of Küçük Kaynarca. The Russian consuls in the city sometimes established good relations with the Ottoman governers within the framework of their activities there, and sometimes did not hesitate to interfere in the internal affairs of the state. The Russian, trying to dominate over the Ottoman subjects Greeks living in this city, have existed in Sinop for many years. This study aims to examine the reasons for the Russian existence in Sinope and their activities there throughout the 19th century.