6U

6U or 6-U may refer to:

Aviation

• Air Ukraine (IATA code:6U)
• PW-6U, a model of Politechnika Warszawska PW-6 glider
• HY-6U, a model of Xian H-6 jet bomber

Other technologies

• 6U, a rack unit configuration of 10½-inch depth
• RG-6/U coaxial electrical cable
• 6U, a model of Zenit Soviet spy satellite

See also

• U6 (disambiguation)