CT or ct may refer to:
A CT scan makes use of computer-processed combinations of many X-ray images taken from different angles to produce cross-sectional (tomographic) images (virtual "slices") of specific areas of a scanned object, allowing the user to see inside the object without cutting.
H. P. Lovecraft created a number of fictional deities throughout the course of his literary career, including the "Great Old Ones" and the "Outer Gods", with sporadic references to other miscellaneous deities (e.g.
Ctenophora (/tᵻˈnɒfərə/; singular ctenophore, /ˈtɛnəfɔːr/ or /ˈtiːnəfɔːr/; from the Greek κτείς kteis 'comb' and φέρω pherō 'carry'; commonly known as comb jellies) is a phylum of invertebrate animals that live in marine waters worldwide.
CTV is an English-language broadcast television network in Canada launched in 1961. Since 2000 it is owned by the Bell Media division of BCE, Inc.
CTrain is a light rail transit system in Calgary, Alberta, Canada. It began operation on May 25, 1981 and has expanded as the city has increased in population.
Color Television Interface Adaptor (CTIA) and its successor Graphic Television Interface Adaptor (GTIA) are custom chips used in the Atari 8-bit family of computers and in the Atari 5200 console.
A Cthulhu Mythos anthology is a type of short story collection that contains stories written in or related to the Cthulhu Mythos genre of horror fiction launched by H. P.
CTC is a television station in Canberra, the capital city of Australia. The station was the tenth to begin transmission in regional Australia, and the 26th station in Australia as a whole.