TMO

TMO may refer to:

T-Mobile International AG, a German telecommunication company
The Muslim Observer, a weekly newspaper in Michigan, United States
Table Mountain Observatory, California
Tenant management organisation, an organisation set up under United Kingdom law
Thermo Electron, former NYSE ticker
Thermo Fisher Scientific, American firm which trades on the NYSE as TMO
Tortugas Mountain Observatory, New Mexico, USA
Television Match Official, a rugby official who assists the referee if uncertain to make a decision
Traffic Management Order, an order made by a United Kingdom local authority under the Road Traffic Regulation Act 1984
Trainman Operated Crossing, a type of level crossing
Transition-Metal Oxide (see also Surface properties of transition metal oxides)
Traditional Martinist Order
Trunked Mode Operation, see Digital mobile radio
TrackMania Original

This disambiguation page lists articles associated with the title TMO.
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