MS2

MS2 or MS-2 may refer to:

Science and technology

 * Bacteriophage MS2
 * Metre per second squared (ms−2; m/s²), a unit of acceleration
 * Lockheed Martin Maritime Systems & Sensors
 * Tandem mass spectrometry (MS²)
 * MegaSquirt2, a type of MegaSquirt electronic fuel injection controller
 * ms2, an open source molecular simulation software

Transport

 * Mighty Servant 2, a heavy-lift ship
 * Mississippi Highway 2
 * Progress MS-02, a spacecraft
 * Soyuz MS-02, a spacecraft
 * Southern Railway (U.S.) Class Ms-2, a locomotive

Video games

 * MapleStory 2
 * Mass Effect 2
 * Metal Slug 2

Other uses

 * Mississippi's 2nd congressional district
 * Project MS-2, a con perpetrated in 2002