A tux is a type of formal dress.
Tux or TUX may also refer to:
Arts and entertainment
- Tux (band), a Hong Kong alternative rock band
- Tux, a minor character from Super Mario 64
- Tux the Penguin, an animated character from Out of Jimmy's Head
Computing
- Tux (mascot), the Linux mascot
- TUX web server, an in-kernel Web server for Linux
Places
- Tux, Tyrol, Austria
- Tumbler Ridge Airport, Canada (by IATA code)
Other uses
- MW Tux, a chain of clothing stores
- Tux Cattle, an Austrian cattle breed