The Kazansky District (Russian: Казанский район), initially the Kazanskaya Sector (Казанская часть), was an administrative division in the Russian capital Saint Petersburg/Petrograd from 1865 to 1917. As of the late 1800s and early 1900s it was an affluent area in the heart of the city. In 1917 a District Duma was elected and a soviet (council) was formed.