Radio 1 or Radio One may refer to:

• Radio One (company), a United States-based network radio operator
• Radio 1 (Belgium), a radio station in the Flanders region of Belgium
• Radio 1 (Czech Republic), a commercial music radio station in Prague
• Radio One (India), an Indian radio station
• Radio 1 (Norway), a network of commercial radio stations
• Radio 1 (Netherlands), a station of the Dutch public broadcasters
• Radio One (New Zealand), a student radio station in Dunedin
• BBC Radio 1, a radio station from the British Broadcasting Corporation
• CBC Radio One, a Canadian Broadcasting Corporation station
• RTÉ Radio 1, Radio Telefís Éireann's news, current events and talk station
• Rai Radio 1, an Italian radio station, managed by RAI
• Radio 1 (Ghana), a station of the Ghana Broadcasting Corporation
• "Radio One", a song by the Jimi Hendrix Experience from BBC Sessions

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