RT may refer to:
RT (formerly Russia Today) is a Russian international television network funded by the Russian government.
RTÉ One (Irish: RTÉ a hAon) is the flagship television channel of Raidió Teilifís Éireann (RTÉ), and it is the most popular and most watched television channel in Ireland.
RTÉ2 is a free-to-air general entertainment channel operated by Irish national broadcaster Raidió Teilifís Éireann.
RTÉ News and Current Affairs (Irish: Nuacht agus Cúrsaí Reatha RTÉ), is a major division of Raidió Teilifís Éireann and provides a range of national and international news and current affairs programming for RTÉ television, radio and online and also for the independent Irish language broadcaster TG4. It is, by far, the largest and most popular news source in Ireland – with 77% of the Irish public regarding it as their main source of both Irish and international news.
RTC Transit is the name of the bus system in the Las Vegas metropolitan area of Clark County, Nevada. It is a subsidiary of the Regional Transportation Commission of Southern Nevada.
RTP-MIDI (also known as AppleMIDI) is a protocol to transport MIDI messages within RTP (Real-time Protocol) packets over Ethernet and WiFi networks.
RTD Bus and Rail (branded as TheRide) is a transit system in the Denver, Colorado, metropolitan area. Operated by the Regional Transportation District (RTD), it currently runs 79 local, 16 express, 16 regional, 11 limited, and 5 skyRide bus routes plus some special services.
RTÉ.ie is the brand name and home of RTÉ's online activities, located at the URL http://rte.ie. The site began publishing on 26 May 1996. According to RTÉ, it operates on an entirely commercial basis, receiving none of the licence fee which funds much of RTÉ's activity.
The RT-2PM2 «Topol-M» (Russian: РТ-2ПМ2 «Тополь-М», NATO reporting name: SS-27 "Sickle B", other designations: RS-12M1, RS-12M2, formerly incorrectly RT-2UTTKh) is one of the most recent intercontinental ballistic missiles to be deployed by Russia (see RS-24), and the first to be developed after the dissolution of the Soviet Union.