Look up accordion, accordeon, accordionist, or Akkordeon in Wiktionary, the free dictionary.

An accordion is part of a family of musical instruments.

Accordion may also refer to:

• Any object with features resembling an accordion or its bellows
• Accordion cut, a technique in butchery similar to butterflying
• Accordion (GUI), a graphical user interface widget displaying a list where individual members of the list can be expanded or collapsed
• Accordion (film), a 1934 Soviet musical film
• Accordion (solitaire), a solitaire card game
• "Accordion", a song by Madvillain from their album Madvillainy
• Accordion (company), an American consulting company