RTÉ Radio 1 is Ireland's national public service radio station, operated by Raidió Teilifís Éireann (RTÉ). It traces its origins back to 1926 when it began broadcasting as 2RN, making it Ireland's oldest radio station. RTÉ Radio 1 is the most listened-to radio station in Ireland, offering a diverse mix of news, current affairs, entertainment, and cultural programming.

The station's history is closely tied to Ireland's development as an independent nation. It has evolved from its early days as a state-run broadcaster to become a cornerstone of Irish media and culture. RTÉ Radio 1 moved to its current purpose-built Radio Centre in Donnybrook, Dublin in the 1970s.

Today, RTÉ Radio 1 broadcasts 24 hours a day, featuring flagship programs like "Morning Ireland," Ireland's most popular radio show, which has been on air since 1984. The station's programming includes news bulletins, talk shows, documentaries, drama, music, and sports coverage.

RTÉ Radio 1 prides itself on being "Listeners First," reflecting its commitment to serving the Irish public. It plays a crucial role in Irish society, providing a platform for national discourse, cultural expression, and entertainment.