TSN may refer to:

Science and technology

* Translin, DNA binding protein involved in microRNA function * Taxonomic serial number, a stable and unique taxonomic serial number issued by the Integrated Taxonomic Information System * The Science Network, a non-profit, web-based organization concerned with science and its impact on society * Time-Sensitive Networking, a set of IEEE 802 standards that define mechanisms for the transmission of time-sensitive data over Ethernet networks.

Film and media

* ''Televiziyna Sluzhba Novyn'', an integrated TV/web news service of the Ukrainian 1+1 TV channel * ''The Sporting News'', the former name of the American-based sports magazine ''Sporting News'' * The Sports Network, a Canadian English-language cable television specialty channel * Texas State Network, an all-news radio network available for stations in the state of Texas

Other uses

* Tianjin Binhai International Airport (IATA code: TSN), an airport located east of Tianjin, in Dongli District * Tswana language (ISO 639 code: tsn), a language of Southern Africa, spoken by more than 4 million people and written in the Latin alphabet * Tyson Foods (NYSE code: TSN), an American multinational corporation {{disambiguation