Mitt may refer to:

• Glove, a garment covering the whole hand
• Baseball mitt, a large leather glove that is worn by baseball players on defense
• Mitt (name), a surname and given name
• Military transition team or MiTT
• Moscow Institute of Thermal Technology or MITT
• William Mitten (1819–1906), English chemist, whose name is usually abbreviated "Mitt."
• Mitt (film), a 2014 documentary film about Mitt Romney

Moscow Institute of Thermal Technology ( - Federal State Unitary Enterprise "Moscow Institute of Thermal Technology") (The name can also be translated as: "Moscow Institute of Thermal Equipment") a Russian (and former Soviet) scientific research institute that was founded on May 13, 1946. Previously, it was primarily focused on developing ballistic missiles and rockets to increase the nation's strategic deterrent capability. Today it is also involved in civilian projects and has modified some of its intercontinental ballistic missiles into launch vehicles to be used for satellites. The institute is located in the Otradnoye District in the north of Moscow.

William Mitten (1819-1906) was an English pharmaceutical chemist and authority on bryophytes who has been called "the premier bryologist of the second half of the nineteenth century".