This is a list of singles which have reached number one on the Irish Singles Chart in 1980.
| Week ending | Song | Artist |
|---|---|---|
| 5 January | Another Brick in the Wall | Pink Floyd |
| 12 January | Another Brick in the Wall | Pink Floyd |
| 19 January | Totus Tuus | Dana |
| 26 January | Brass in Pocket | The Pretenders |
| 2 February | Brass in Pocket | The Pretenders |
| No charts exist for 34 weeks due to a strike. | ||
| 4 October | Don't Stand So Close to Me | The Police |
| 11 October | Don't Stand So Close to Me | The Police |
| 18 October | Don't Stand So Close to Me | The Police |
| 25 October | Don't Stand So Close to Me | The Police |
| 1 November | Woman in Love | Barbra Streisand |
| 8 November | Woman in Love | Barbra Streisand |
| 15 November | Woman in Love | Barbra Streisand |
| 22 November | Woman in Love | Barbra Streisand |
| 29 November | Super Trouper | ABBA |
| 6 December | Super Trouper | ABBA |
| 13 December | Super Trouper | ABBA |
| 20 December | There's No-one Quite Like Grandma | St Winifred's School Choir |
| 27 December | There's No-one Quite Like Grandma | St Winfred's School Choir |
- 7 Number Ones
- Most weeks at No.1 (song): "Don't Stand So Close to Me" - The Police, "Woman in Love" - Barbra Streisand (4)
- Most weeks at No.1 (artist): The Police, Barbra Streisand (4)
- Most No.1s: All artists 1 each
Famous quotes containing the words list, number-one:
“Feminism is an entire world view or gestalt, not just a laundry list of women’s issues.”
—Charlotte Bunch (b. 1944)
“I’m your number-one fan.”
—William Goldman (b. 1931)