Mitt may refer to:

• Mitten, a garment covering the whole hand
• Baseball mitt, a leather glove worn by baseball players on defense

• Mitt (film), a 2014 documentary film about Mitt Romney
• The Mitt, a bronze sculpture of a baseball mitt in T-Mobile Park, Seattle, Washington, United States

• Mitt (name), a surname and given name
• William Mitten (1819–1906), English authority on bryophytes and chemist, whose botanical author abbreviation is "Mitt."

MITT may refer to:

• Moscow Institute of Thermal Technology
• Military transition team (MiTT)
• Modified intention-to-treat analysis, of a randomized controlled trial in medicine

• Mitts, a surname
• MIT (disambiguation)