Fidelio is the only opera written by Ludwig van Beethoven.

Fidelio may also refer to:

Fidelio (film), an Australian television live recording of the opera Fidelio: Alice's Odyssey, a 2014 French film Fidelio (magazine), a journal of the Lyndon LaRouche movement Fidelio Records, a classical music label "Fidelio", a password in the film Eyes Wide Shut Fidelio, discontinued software from Hotline Connect MICROS Fidelio, a property management system for hotels Fidelio F. Finke (1891–1968), Bohemian/German composer "Fidelio", a single by rapper Fakemink Fidelio award, of Music and Arts University of the City of Vienna "Witte Brigade-Fidelio", from 1944 the name of the Belgian WW II-era resistance group White Brigade. "Fidelio" was the code name for its founder and commander, Marcel Louette.

See also 524 Fidelio, an asteroid Fidel (disambiguation) Fidelia (disambiguation) Fidelis (disambiguation)