The Thirty may refer to:David's Mighty Warriors, the retinue of the Biblical king David Thirty Tyrants, the Athenian oligarchy beginning in 404 BC Trial of the thirty, trial of anarchists in the Third French Republic The Thirty, series of books by David Gemmell Thirty, a novel by Howard Vincent O'Brien recently made available on Project Gutenberg Thirty (album), a 2013 album by Australian recording artist Anthony Callea