TMO

TMO may refer to:

• T-Mo, American rapper
• 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

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