Tarquin (Latin Tarquinius) may refer to:
Tarquin (opera), a chamber opera
Given name Lucius Tarquinius Priscus or Tarquin the Elder (died 579 BC), fifth of the seven legendary kings of Rome Lucius Tarquinius Superbus or Tarquin the Proud (died 496 BC), last of the seven legendary kings of Rome Sextus Tarquinius, son of Tarquin the Proud, of the Tarquin and Lucretia story Tarquin Hall (born 1969), British writer and journalist Tarquin Gotch, entertainment industry veteran
Surname Brian Tarquin (21st century), American guitarist Didier Tarquin (born 1967), French cartoonist and scenarist
Fictional Tarquin, a telepathic alien from the episode "Exile" of the science-fiction television series Star Trek: Enterprise. Tarquin Blackwood, a fictional character from The Vampire Chronicles General Tarquin, a character from the webcomic The Order of the Stick Tarquin Fin-tim-lin-bin-whin-bim-lim-bus-stop-F'tang-F'tang-Olé-Biscuitbarrel, character from the Monty Python sketch Election Night Special Tarquin, Sheridan's boyfriend on the TV series Keeping Up Appearances
See also Tarkin (disambiguation)