List of number-one singles of 1973 (Ireland)
This is a list of singles which have reached number one on the Irish Singles Chart in 1973.
| Issue Date | Song | Artist |
|---|---|---|
| 4 January | Happy Xmas (War Is Over) | John & Yoko |
| 11 January | Whiskey In The Jar | Thin Lizzy 
|
| 18 January | Long Haired Lover from Liverpool | Little Jimmy Osmond |
| 25 January | ||
| 1 February | ||
| 8 February | ||
| 15 February | Blockbuster! | Sweet |
| 22 February | ||
| 1 March | I Love You Still | Big Tom
|
| 8 March | ||
| 15 March | Cum on Feel the Noize | Slade |
| 22 March | ||
| 29 March | Get Down | Gilbert O'Sullivan
|
| 5 April | ||
| 12 April | ||
| 19 April | Tie a Yellow Ribbon 'Round the Ole Oak Tree | Dawn featuring Tony Orlando |
| 26 April | ||
| 3 May | ||
| 10 May | ||
| 17 May | ||
| 24 May | ||
| 31 May | See My Baby Jive | Wizzard |
| 7 June | Daisy a Day | Danny Doyle
|
| 14 June | ||
| 21 June | ||
| 28 June | Rubber Bullets | 10cc |
| 5 July | ||
| 12 July | Skweeze Me Pleeze Me | Slade |
| 19 July | Welcome Home | Peters and Lee |
| 26 July | ||
| 2 August | ||
| 9 August | ||
| 16 August | ||
| 23 August | Where Three Counties Meet | Brendan Shine
|
| 30 August | ||
| 6 September | Young Love | Donny Osmond |
| 13 September | ||
| 20 September | The Dean and I | 10cc |
| 27 September | The Ballroom Blitz | Sweet |
| 4 October | ||
| 11 October | ||
| 18 October | My Friend Stan | Slade |
| 25 October | ||
| 1 November | ||
| 8 November | For The Good Times | Perry Como |
| 15 November | ||
| 22 November | The Helicopter Song | Wolfe Tones
|
| 29 November | ||
| 6 December | ||
| 13 December | ||
| 20 December | Merry Christmas Everybody | Slade |
| 27 December |