MVSN explained

MVSN may refer to:

Paramilitary organizations

• Milizia Volontaria per la Sicurezza Nazionale, better known as the Blackshirts, the Italian Fascist paramilitary groups
• Milice de Volontaires de la Sécurité Nationale, better known as the Tonton Macoute, a Haitian paramilitary force created in 1959

Companies

• Macrovision, the former name of the software company Rovi Corporation.