The Novgorod Republic is a large medieval Russian state that stretches from the Baltic Sea to the northern Ural Mountains between the 12th and 15th centuries, which includes the city of Novgorod and the Lake Ladoga regions.

Citizens refer to their city-state as "His Majesty (or Sovereign) Lord Novgorod the Great" (Gosudař Gospodin Velikij Novgorod), or more often as "Lord Novgorod the Great" (Gospodin Velikij Novgorod).

The Republic prospers as the easternmost port of the Hanseatic League.