RTN

RTN may refer to:

• Racetrack Television Network, North America
• Random telegraph noise
• Recursive transition network
• Register transfer notation for synchronous digital circuits
• Reticular thalamic nucleus
• Retro Television Network, US
• Routing Transit Number in US banking system
• Rowan Television Network
• Royal Thai Navy
• Former callsign of the NRN TV station in Lismore, NSW, Australia
• RTN (Switzerland), radio broadcaster