Blue fox may refer to :
- The Blue Fox, a 1921 serial film
- Herning Blue Fox, a Danish icehockey team
- a game for FM-7 released in 1986, according to the list of Enix games
- Blue Fox, 1970s radar used in the BAE Sea Harrier, the version in the Sea Harrier FA.2 is named Blue Vixen
- A type of fox in The Animals of Farthing Wood (TV series).
- The Blue Fox, one of the "blue" public houses and inns in Grantham
- Blue Fox, a painting by Franz Marc
- The Arctic Fox Alopex lagopus, whose coat can appear blue during seasonal changes File:ArcticFoxesLyd.jpg.
- Blue Fox, kiloton range British nuclear weapon, later renamed Indigo Hammer