TC, T.C., Tc, Tc, tc, tC, or .tc may refer to:
Transmission Control Protocol (TCP) uses a network congestion-avoidance algorithm that includes various aspects of an additive increase/multiplicative decrease (AIMD) scheme, with other schemes such as slow-start and congestion window to achieve congestion avoidance.
TCF Bank Stadium is an outdoor stadium located on the campus of the University of Minnesota in Minneapolis, Minnesota, United States.
The TCU Horned Frogs are the athletic teams that represent Texas Christian University, consisting of 18 varsity teams.
The TCR International Series is an international Touring Car championship. The championship – founded by former World Touring Car Championship boss Marcello Lotti – is marketing itself as a cost-effective spin-off of the WTCC, targeted at C-category tin-top racing cars.
The TCU Horned Frogs football team is the intercollegiate football team of Texas Christian University (TCU).
Tcl (pronounced "tickle" or tee cee ell, /ˈtiː siː ɛl/) is a high-level, general-purpose, interpreted, dynamic programming language.