An emperor is a type of monarch.
Emperor may also refer to:
Animals
- Emperor angelfish
- Emperor bream
- Emperor penguin
- Emperor moths, moths of the subfamily Saturniinae
- in particular the type genus Saturnia
- Emperor scorpion
- a number of brush-footed butterflies:
- in the subfamily Apaturinae:
- Emperors, the genus Apatura
- American emperors, the genus Asterocampa
- a few species in various sister genera of the above:
- Golden emperor, Dilipa morgiana
- Indian purple emperor, Mimathyma ambica
- Sergeant emperor, Mimathyma chevana
- Sordid emperor, two different species:
- Asterocampa idyja, native to North America
- Chitoria sordida, native to Southeast Asia
- Tawny emperor, two different species:
- Asterocampa clyton from North America
- Chitoria ulupi from East Asia
- Tytler's emperor, Eulaceura manipuriensis
- White emperor, Helcyra hemina
- The emperor, Morpho peleides
- in the subfamily Charaxinae:
- some of the butterflies in the genus Charaxes
- in the subfamily Apaturinae:
Media and entertainment
- Emperor (2012 film), a historical drama film directed by Peter Webber
- Emperor (2020 film), a historical drama film directed by Mark Amin
- The Emperor (film), a 1967 short documentary film by George Lucas
- Emperor Entertainment Group of Emperor Group
- Emperor, a novel in the science fiction Isaac Asimov's Robots in Time series by William F. Wu
- Emperor (novel series), a book series by Conn Iggulden
- Emperor (Baxter novel), a novel by Stephen Baxter
- Hol Horse's Stand from JoJo's Bizarre Adventure
- Emperor Palpatine, the main antagonist of the Star Wars franchise
Music
- Emperor Concerto, Beethoven's fifth piano concerto
- Quartet No. 62 in C Major ("Emperor"), Op. 76, No. 3, FHE No. 42, Hoboken No. III:77, a string quartet by Joseph Haydn
- Emperor (band), a Norwegian black metal band
- Emperor (EP), 1993 EP by Emperor
- The Emperors, an American soul band
Games
- Emperor: Battle for Dune, a sci-fi computer game
- Emperor: Rise of the Middle Kingdom, a city-builder computer game
- Emperor of Mankind, a character in the Warhammer 40,000 universe
Transportation
- HMY Emperor (1856), was a steam yacht presented to the "Emperor of Japan" by Queen Victoria, renamed Banryū by Japan
- Emperor, two locomotives in the GWR Iron Duke Class
- Emperor, a locomotive in the South Devon Railway Buffalo class
- Emperor, one of the GWR 3031 Class locomotives that were built for and run on the Great Western Railway between 1891 and 1915
- HMS Emperor (D98), was an Ameer-class escort carrier, transferred to the Royal Navy under lend-lease in 1943 and returned to the US Navy in 1946
Other uses
- Emperor (grape), an Australian wine grape
- Emperor (roller coaster), an upcoming roller coaster in Sea World San Diego
- The Emperor (Tarot card), a tarot card
- Emperor (typeface), a type face cut by Baltimore Type Foundry
- "Emperor", a disc golf distance driver by Infinite Discs
- Rome Emperors, minor league baseball team in Rome, Georgia