MSN is a web portal provided by Microsoft.

MSN may also refer to:

Microsoft MSN Dial-Up Internet Access (originally The Microsoft Network), the Internet service provider MSN Messenger (later Windows Live Messenger), once synonymous with 'MSN' in Internet slang List of services by MSN, a list that includes several services Microsoft has rebranded

Other Dane County Regional Airport (IATA airport code MSN) in Madison, Wisconsin Manufacturer's serial number, a unique identifier assigned by some manufacturers. The abbreviation is typically used by aircraft companies. Master of Science in Nursing Medium spiny neuron Meeker Southern Railroad, which uses the reporting mark 'MSN' Meter serial number Mountaineer Sports Network, a former business identity of the West Virginia Radio Corporation MSN (association football), an acronym for Lionel Messi, Luis Suárez and Neymar, the main attacking trio of Spanish football club FC Barcelona from 2014 to 2017 MSN, the human gene which produces the moesin protein The National Sports Council of Malaysia, Majlis Sukan Negara Malaysia Make Some Noise (TV series)

See also MSM (disambiguation)