M series

M series may refer to:

Computers

 * M series (Apple silicon)
 * M series (computer), a line of computers designed in the USSR
 * ThinkCentre M series, a line of desktop computers
 * Sony Vaio M series, a line of desktop computers and a line of netbook computers

Mobile phones

 * Samsung Galaxy M series
 * Sony Ericsson M series
 * Meizu M series

Transportation

 * M series (Toronto subway)
 * Bedford M series, a truck chassis
 * Cummins M-series engine, a diesel engine for buses and trucks
 * Dodge M-series chassis, a motorhome chassis
 * Rover M-series engine, a line of 4-cylinder gasoline car engines
 * Studebaker M-series truck
 * TVR M series, a series of sports cars

Other uses

 * M-series bayonet
 * Juniper M series, a series of routers
 * Leica M series, a series of cameras
 * QI (M series), the twelfth series of quiz show QI