TM2 or Tm2 may refer to:
Soyuz TM-2, the spacecraft used to launch a long duration crew to the Soviet space station Mir Thermal Monitor 2, a computer central processing unit thermal control TM2, a Rolls-Royce Marine Olympus gas turbine Square terametre (Tm2), a multiple of the SI unit of surface area, the square metre Tm^2, a metric unit equal to a weber Twisted Metal 2, a 1996 video game TM2 (software), a technical SEO checker developed by TrafficMatrix and available as a web-based tool and Chrome extension.
See also 5857 Neglinka (1975 TM2), a main-belt asteroid