Emperor can refer to:
- The concept of emperorship.
- Emperor, Lord of Heaven, and King-ut-Cyrod, a titled used by the rulers of the Alessian Empire.
- Emperor of Cyrodiil, a title used by the rulers of both the Second Empire and the Empire of Cyrodiil.
- Emperor of Tamriel, a title used by the rulers of the Third Empire, which is still in use today.