The Mighty is an epithet for:
People:
- Sigurd Eysteinsson (ruled c. 875–892), Earl of Orkney
- Stephen Uroš IV Dušan of Serbia (c. 1308–1355), King of Serbia and Emperor of the Serbs and Greeks
- Thorfinn the Mighty (1009?–c. 1064?), Earl of Orkney
Fictional characters:
- Gorzo the Mighty, writer for The Onion
- Morgyn the Mighty, a comic strip character
- Tharg the Mighty, recurring character in science fiction comic 2000 AD