LT, lt, and variants may refer to:
The LTV A-7 Corsair II is an American carrier-capable subsonic light attack aircraft manufactured by Ling-Temco-Vought (LTV) to replace the Douglas A-4 Skyhawk.
In telecommunication, Long-Term Evolution (LTE) is a standard for high-speed wireless communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA technologies.
LTE Advanced is a mobile communication standard and a major enhancement of the Long Term Evolution (LTE) standard.
The Portuguese Air Force (PoAF) operated 50 LTV A-7 Corsair II aircraft in the anti-ship, air interdiction and air defense roles between 1981 and 1999. The Portuguese government acquired the Corsair II to replace the PoAF's North American F-86 Sabre fighters, with two orders being placed for a total of 50 A-7P and TA-7P.
LTU, legally incorporated as LTU Lufttransport-Unternehmen GmbH, was a German leisure airline headquartered in Düsseldorf.
LTE in unlicensed spectrum (LTE-Unlicensed): The commercial success of the Long Term Evolution (LTE) and the resulting growth in mobile data demand have urged cellular network operators to strive for new innovations.
LTspice is freeware computer software implementing a SPICE simulator of electronic circuits, produced by semiconductor manufacturer Linear Technology (LTC), now part of Analog Devices.
The Ling-Temco-Vought (LTV) XC-142 was a tri-service tiltwing experimental aircraft designed to investigate the operational suitability of vertical/short takeoff and landing (V/STOL) transports.