RTÉ Radio 1
| Broadcast area | Republic of Ireland and Northern Ireland Worldwide on internet | 
|---|---|
| Frequency | 87.8–90.0 MHz FM Saorview: 200 Saorsat: 21 Virgin Media Ireland: 901 Sky: 0137 Virgin Media (UK): 917 Freesat: 750 | 
| RDS | RTE R1 | 
| Programming | |
| Format | Full-service radio | 
| Ownership | |
| Owner | Raidió Teilifís Éireann | 
| RTÉ 2fm RTÉ lyric fm RTÉ Raidió na Gaeltachta RTÉ Pulse RTÉ 2XM RTÉ Jr Radio RTÉ Chill RTÉ Gold RTÉ Radio 1 Extra | |
| History | |
| First air date | 1 January 1926 | 
| Former frequencies | 252 kHz LW 567 kHz & 729 kHz MW 227.360 MHz (12B) DAB | 
| Links | |
| Webcast | MP3 | 
| Website | rte.ie/radio1/ | 
RTÉ Radio 1 (Irish: RTÉ Raidió 1) is an Irish national radio station owned and operated by RTÉ and is the direct descendant of Dublin radio station 2RN, which began broadcasting on a regular basis on 1 January 1926.
The total budget for the station in 2010 was €18.4 million. It is the most-listened-to radio station in Ireland.