Allegro may refer to:
Common meanings Allegro (music), a tempo marking that indicates to playing quickly and brightly (from Italian meaning cheerful) Allegro (ballet), brisk and lively movement
Artistic works L'Allegro (1645), a poem by John Milton Allegro (Satie), an 1884 piano piece by Erik Satie "Allegro", any of several musical works in Nannerl Notenbuch by Wolfgang Amadeus Mozart "Allegro", a composition by Bear McCreary in Music of Battlestar Galactica Allegro (film), a 2005 Danish film by Christoffer Boe Allegro (musical), a 1947 musical by Rodgers and Hammerstein
Businesses and brands Allegro (website), a Polish e-commerce platform Allegro (restaurant), a luxury restaurant in Prague Allegro (train), a former passenger train service between Helsinki and Saint Petersburg Allegro Coffee Co., a beverage company acquired by Whole Foods Market Allegro DVT, a French video codec company Allegro Microsystems, a semiconductor company Austin Allegro, a car once manufactured by British Leyland Mazda Allegro, a car manufactured in South America as a version of Mazda Familia Líneas Aéreas Allegro, a Mexican airline
Science and technology Allegro gravitational-wave detector ALLEGRO, European experimental gas-cooled fast reactor Allegro (software library), a multi-platform software library for video and audio application development Allegro 8 (software), risk management software by Allegro Development Corporation Allegro Common Lisp, a variant of the Common Lisp programming language Allegro Platform, an ECAD tool by Cadence Design Systems Allegro musical notation, a text-based score representation used by Audacity
Other uses Allegro (typeface), a typeface designed in 1936 Allegro speech, a relatively fast manner of speaking John Marco Allegro, Dead Sea Scrolls scholar
See also Allegra (disambiguation)