mSv or MSV may refer to:

• Maize streak virus, a plant disease

• Medium-speed vehicle, US category

• Medium Systems Vehicle, a class of fictional artificially intelligent starship in The Culture universe of late Scottish author Iain Banks

• Millisievert, radiation unit

• Mississippi and Skuna Valley Railroad, 1925–2008, reporting mark

• Mixed single vote, a type of electoral system

• Mobile Satellite Ventures, US company

• Modular Scalable Vest, a US military body armor vest

• MotorSport Vision, a UK organisation

• M. S. Viswanathan (1928–2015), Indian composer

• Motor Stand-by Vessel, a merchant vessel name prefix

• Museum of the Shenandoah Valley, US museum

• Meaning, syntax, and visual information, a common variation of the three cueing method of reading acquisition

See also