Allegro

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

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

Allegro (website), a Polish e-commerce platform
Allegro (restaurant), a luxury restaurant in Prague
Allegro (train), a 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

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