The phrase Imperial Navy may refer to:
- The Austro-Hungarian Navy
- The German Navy between 1872 and 1918
- The Imperial Japanese Navy from 1869 until 1947
- The Imperial Navy of Imperial Qing government
- The Imperial Navy from the fictional Star Wars universe.
- The Imperial Navy from the fictional Warhammer 40,000 universe.
- In addition, many other Science Fiction Space Empires have Imperial Navies of various power and benevolence/malevolence.