Tube may refer to: Object
- cathode ray tube, a common component of electronics such as televisions and other displays
- cylinder (geometry), a hollow shape
- inner tube, a component of vehicular tires
- pneumatic tube, a method of transportation utilising compressed air
- test tube, a piece of laboratory equipment used in science
- Tube, An expansion bus on the BBC Micro computer
- tubing (material), used in plumbing, irrigation, and other applications
- vacuum tube, a component of electronics
Food
- Yoplait Tubes, the Canadian name for Go-Gurt portable yog(o)urt
Packaging
- Tube (packaging), a packaging solution for pasty and viscous goods such as toothpaste
Structural Engineering
- Tube (structure), the predominate structural system for constructing tall buildings in the United States between World War II and the 1990's.
Transportation
- An inflatable water biscuit, used as a flotation device.
- The London Underground, London's subterranean train system, commonly known as the tube.
- Transbay Tube, an underwater rail tube across the San Francisco Bay
Nature
Media
- The Tube (TV series), a music related TV series by Channel 4 in the United Kingdom
- The Tubes, a San Francisco based rock group
- TUBE, a Japanese pop group
- Tube (game), a freeware game from Bullfrog Productions, released in 1995
- Tube (movie), a South Korean movie (튜브 (영화)).
- Tube, a children's programme with inflatable characters on SABC, South Africa
- Tube & Berger, the alias of Dance/Electronica producers Arndt Rörig and Marco Vidovic from Germany
- YouTube, a website that allows users to upload, view, and share video clips
- PornoTube, a website with adult material
- Peter 'Tubes' Dale, aka Tubes from the Soccer AM television show
Software
- Tubes (software), a software program that combines file sharing and web publishing technologies
Theatre
- Blue Man Group's theatrical show, "TUBES", now called "Rewired" tuby tubical r radical
