Emit may refer to:

• Emit, Time backwards. To travel back in time
• Emit (artist), From Newtown Connecticut - A Colorado-based graffiti artist
• Emit, North Carolina, an unincorporated community
• , a British record label that specializes in ambient music. Technically the name has a colon in place of the letter "I", but it is pronounced (and often erroneously written) like the common word "emit".
• Cornish derogatory slang for a tourist or newcomer, especially one that has a second home or attempts to drive inappropriately large cars around country lanes or villages. This derives from the Old English word for 'ant'. Pronounced Em-mit rather than e-MIT.
• EMIT or Enzyme Multiplied Immunoassay Technique, a common drug test
• EMIT (corporation), a Norwegian timing equipment manufacturer
• Emit (video game), a visual novel video game about time travel and was released on various video game systems. One of the first fan translated video games.

Enzyme multiplied immunoassay technique (EMIT) is a common method for qualitative and quantitative determination of drugs and certain proteins in serum and urine. First introduced by Syva Company in 1973, it is the first "homogeneous immunoassay" to be widely used commercially.