Allegro

Allegro may refer to:

• Allegro (music), a tempo marking
• Allegro (ballet)
• Allegro (auction website), a Poland-based online auction website
• Allegro (film), a 2005 Danish film by Christoffer Boe
• Allegro (musical), a 1947 musical by Rodgers and Hammerstein
• Allegro (restaurant), a luxury restaurant in Prague
• Allegro (typeface), a typeface designed in 1936
• Allegro (software), a software library for video game development
• ALLEGRO, a cryogenic gravitational wave bar detector
• Austin Allegro, a car once manufactured by British Leyland
• Allegro library, a computer game programming library
• Allegro Common Lisp, a variant of the Common Lisp programming language developed by Franz Inc
• Allegro (train), the Karelian Trains Class Sm6, an express passenger train service between Helsinki and Saint Petersburg
• "Allegro", any of several musical works in Nannerl Notenbuch by Wolfgang Amadeus Mozart
• Allegro Platform, an ECAD tool by Cadence Design Systems
• Líneas Aéreas Allegro, a Mexican airline