Siege of Ochakov may refer to: Siege of Ochakiv (1670), during the Cossacks Raid Siege of Ochakov (1737), the first siege during the Russo-Turkish War of 1735–1739 Siege of Ochakov (1771), the second siege during the Russo-Turkish War of 1768–1774 Siege of Ochakov (1788), the third siege during the Russo-Turkish War of 1787–1792 Naval actions at the siege of Ochakov (1788)