Tube or tubes may refer to:

• Tube (2003 film), a 2003 Korean film
• "Tubes" (Peter Dale), performer on the Soccer AM television show
• Tube (band), a Japanese rock band
• Tube & Berger, the alias of dance/electronica producers Arndt Rörig and Marco Vidovic from Germany

• Tube, a freeware game for MS-DOS computers from Bullfrog Productions
• TUBE., an online magazine about visual and performing arts, founded in 2012 in Sacramento, California
• Series of tubes, an analogy for the Internet used by United States Senator Ted Stevens
• Picture tube, term in Paint Shop Pro software for a small digital image with no background

• Tube (fluid conveyance), a long hollow cylinder used for moving fluids
• Tube (structure), building designed to act like a hollow cylinder, cantilevered perpendicular to the ground
• Inner tube, a component of vehicular tires
• Pneumatic tube, a method of transportation using compressed air
• Shipping tube (or mailing tube) – container unit.
• Structural tubing, a type of metal profile used in structural applications
• An underground railway constructed in a circular tunnel by the use of a tunnelling shield

• Tube (BBC Micro), an expansion bus on the BBC Micro computer
• Cathode-ray tube, a component used in display devices such as televisions
• Vacuum tube, an electronic component

• Tube domain, in several complex variables
• Tubular neighborhood, in differential geometry
• Cylinder (geometry), from elementary geometry

• Tube (container), a type of packaging for pasty and viscous goods such as toothpaste
• Extension tube, a tool for macro photography
• Test tube, a piece of laboratory equipment

• Eustachian tube, part of the structure of the ear
• Lava tube, found in volcanic regions
• Fungal tubes, mushroom structure

• Hudson Tubes, a colloquial historical name for the PATH (rail system)
• The Tube, a widely used name for the London Underground, a rapid transit train system
• Transbay Tube, an underwater rail tube across San Francisco Bay

• Tube (toy), or swim ring, a toy that assists play on water
• Tubes (peak), the second highest peak of the Mecsek mountain range in Hungary
• Tubing (recreation), riding on an inner tube as a recreational activity
• Yoplait Tubes or Go-Gurt, a brand of sweetened yogurt
• A type of surf wave
• Tube, Kakao Friends characters

• Pipe (fluid conveyance), a tubular section or hollow cylinder used to convey substances which can flow
• The Tube (disambiguation)
• Microtube (disambiguation)
• Tub (disambiguation)
• Tubing (disambiguation)