Air Commodore-in-Chief is a senior honorary air force appointment which originated in the Royal Air Force and now exists in the air forces of various Commonwealth realms. Appointees are made Air Commodore-in-Chief of a large air force organisation or formation. Initially only the British monarch held air commodore-in-chief appointments. However, since the second half of the 20th century, other members of the royal family have been appointed to such positions in the United Kingdom and the other realms such as Australia, Canada and New Zealand. As of 2020[update], these appointments have been given to just six senior members of the royal family, of whom four were reigning or future monarchs of the Commonwealth realms.
Air commodore-in-chief appointments do not confer a rank, be it air commodore or otherwise. Air commodore-in-chief appointments are more senior than honorary air commodore appointments. The equivalent naval title of Commodore-in-Chief was introduced in 2006.