IGT may refer to:

Integrated Telecom Technology, Inc., known as "IgT" was a fabless semiconductor company founded in 1991 by Ken Lee, Greg Werth, Imran Chaudhri, Jerry Tall, and Chi Wai in Gaithersburg, Maryland. IgT was one of the first companies to focus on semiconductors for the communications marketplace. At its peak, IgT had 60 employees, 45 in its headquarters in Gaithersburg, Maryland and 15 in the San Jose, California office. IgT's logo showed an idealized waveform of a T1 signal.

Early products

IgT's first product was a B8ZS framer device for the T1 market. IgT also introduced an OC-3 ATM framer device that was competitive in the marketplace. This device was designed by Imran Chaudhri who was a central figure in many of IgT's developments.

The name

The acronym IgT was used because IGT was already in use by International Game Technology. The acronym ITT also could not be used given the historic firm ITT in the telecom industry. IgT did own the domain name igt.com, which has subsequently been sold back to IGT.