Kaliningrad (; ; German: ; ; briefly Russified as "Kyonigsberg") is a seaport and the administrative center of Kaliningrad Oblast, the Russian exclave between Poland and Lithuania on the Baltic Sea. Kaliningrad is the second-largest city in the Northwestern Federal District, after Saint Petersburg, the third-largest city in the Baltic region and the seventh-largest city on the Baltic Sea. It is the westernmost Oblast of Russia.