The latest figures from the Joint National Listenership Research Survey (JNLR) show increases for shows on RTÉ Radio 1, RTÉ 2fm and RTÉ lyric fm.
The quarterly figures (known as a 'book') show that 1,854,000 (52%) adults listen to RTÉ Radio every week, with RTÉ Radio 1 the most listened to national station and 18 of the Top 20 most-listened-to programmes among adults (15+) on RTÉ Radio.
On RTÉ Radio 1, Today with Sean O'Rourke has 334,000 listeners, an increase of 6,000 book-on-book and 13,000 year-on-year, while the Ronan Collins Show has gained 16,000 listeners book on book and 24,000 year-on-year to 234,000.
There are also book-on-book gains for, among others, Radio 1's Risin' Time, Drivetime, Arena and John Creedon on weekdays and Saturday with Claire Byrne, Saturday and Sunday Sport, Aoibhinn and Company, Marian Finucane (Sunday) and Sunday Miscellany.
For RTÉ 2fm there have been weekend gains for, among others, Dave Fanning, Weekend Breakfast, Ballbusters/Mark McCabe, Weekenders with Ruth Scott and Paddy McKenna and The Best of Tubridy.
RTÉ lyric fm has seen its weekly reach increase by 10,000 book-on-book to 264,000 listeners, with gains for Marty in the Morning, The Hamilton Scores, Lorcan Murray's Classic Drive, Aedin Gormley's Sunday Matinee and The Music Box.
Commenting on the latest figures, Jim Jennings, Managing Director, RTÉ Radio, said: "This is a very strong result. RTÉ Radio 1 remains the number one choice for listeners across the week. It's particularly pleasing to see Radio 1's mid-morning programmes increase their audiences.
"There are encouraging strong figures on RTÉ 2fm at weekends: the challenge for the station is now to replicate that for weekdays and it's a challenge new head Dan Healy is tackling head-on.
"RTÉ lyric fm is growing its loyal audience and is another example of how weekends are the big winner in these latest results."