Fus is the Arabic term for flatulence but is commonly used in the same manner as the English word fart. Fus or FUS may refer to:
- Feline lower urinary tract disease, previously known as feline urologic syndrome (FUS).
- Franciscan University of Steubenville
- FUS, a human gene
- High intensity focused ultrasound, also known as focused ultrasound surgery (FUS).
- FUS, meaning "Force" in "Dragontongue" from The Elder Scrolls V: Skyrim. A part of the Unrelenting Force Shout "FUS RO DAH".