List of number-one singles of 1979 (Ireland)
This is a list of singles which have reached number one on the Irish Singles Chart in 1979.
| Week ending | Song | Artist |
|---|---|---|
| 6 January | Mary's Boy Child - Oh My Lord | Boney M |
| 13 January | YMCA | Village People |
| 20 January | ||
| 27 January | ||
| 3 February | ||
| 10 February | Chiquitita | ABBA |
| 17 February | ||
| 24 February | ||
| 3 March | Tragedy | The Bee Gees |
| 10 March | ||
| 17 March | I Will Survive | Gloria Gaynor |
| 24 March | ||
| 31 March | ||
| 7 April | ||
| 14 April | Bright Eyes | Art Garfunkel |
| 21 April | ||
| 28 April | ||
| 5 May | Hallelujah | Milk and Honey |
| 12 May | Bright Eyes | Art Garfunkel |
| 19 May | ||
| 26 May | Sunday Girl | Blondie |
| 2 June | ||
| 9 June | ||
| 16 June | ||
| 23 June | Dance Away | Roxy Music |
| 30 June | Do You Want Your Oul Lobby Washed Down | Brendan Shine 
|
| 7 July | ||
| 14 July | ||
| 21 July | ||
| 28 July | ||
| 4 August | I Don't Like Mondays | The Boomtown Rats
|
| 11 August | ||
| 18 August | ||
| 25 August | ||
| 1 September | We Don't Talk Anymore | Cliff Richard |
| 8 September | ||
| 15 September | ||
| 22 September | ||
| 29 September | Viva Il Papa | Catriona Walsh
|
| 6 October | Welcome John Paul II | Jim Tobín
|
| 13 October | ||
| 20 October | Message in a Bottle | The Police |
| 27 October | Video Killed the Radio Star | The Buggles |
| 3 November | ||
| 10 November | Gimme! Gimme! Gimme! (A Man After Midnight) | ABBA |
| 17 November | When You're in Love with a Beautiful Woman | Dr Hook |
| 24 November | ||
| 1 December | ||
| 8 December | Walking on the Moon | The Police |
| 15 December | Another Brick in the Wall (part 2) | Pink Floyd |
| 22 December | ||
| 29 December |
- 20 Number Ones
- Most weeks at No.1 (song): "Bright Eyes" - Art Garfunkel, "Do You Want Your Oul Lobby Washed Down" - Brendan Shine (5)
- Most weeks at No.1 (artist): Art Garfunkel, Brendan Shine (5)
- Most No.1s: Abba (2), The Police (2)