M90 or M-90 may refer to:
Military M90 (camouflage), a camouflage pattern used by the Swedish armed forces Zastava M90, a Yugoslav modern assault rifle Sanomalaite M/90, a Finnish communications device
Transportation Lotus M90, a concept car M-90 (Michigan highway), a state highway in Michigan, United States M90 motorway, a motorway in Scotland McDonnell Douglas MD-90, a twin-engine commercial jet airliner Mendota Airport (FAA location identifier: M90), an airport in Mendota, California, United States Volvo M90 transmission, a gearbox for the Volvo 900 Series models of cars Mitsubishi SpaceJet M90, a regional jet aircraft
Other uses Barrett M90, a bullpup sniper rifle M 90, an age group for Masters athletics (athletes aged 35+) Messier 90 (M90), a spiral galaxy in the Virgo cluster Dell Precision M90, a Dell workstation notebook