List of number-one hits of 1991 (Austria)
# List of number-one hits of 1991 (Austria)

This is a list of the Austrian Singles Chart number-one hits of 1991.

| Issue date | Song | Artist |
| - | - | - |
| 6 January | "Sadeness Part I" | Enigma |
| 13 January | "Sadeness Part I" | Enigma |
| 20 January | "Sadeness Part I" | Enigma |
| 27 January | "Sadeness Part I" | Enigma |
| 3 February | "Unchained Melody" | The Righteous Brothers |
| 10 February | "Unchained Melody" | The Righteous Brothers |
| 17 February | "Unchained Melody" | The Righteous Brothers |
| 24 February | "Unchained Melody" | The Righteous Brothers |
| 3 March | "Unchained Melody" | The Righteous Brothers |
| 10 March | "Unchained Melody" | The Righteous Brothers |
| 17 March | "Hello Afrika" | Dr. Alban featuring Leila K. |
| 24 March | "Gonna Make You Sweat (Everybody Dance Now)" | C+C Music Factory featuring Freedom Williams |
| 31 March | "Joyride" | Roxette |
| 7 April | "Joyride" | Roxette |
| 14 April | "Joyride" | Roxette |
| 21 April | "Joyride" | Roxette |
| 28 April | "Joyride" | Roxette |
| 5 May | "Joyride" | Roxette |
| 12 May | "Joyride" | Roxette |
| 19 May | "Joyride" | Roxette |
| 26 May | "Joyride" | Roxette |
| 2 June | "Joyride" | Roxette |
| 9 June | "The One and Only" | Chesney Hawkes |
| 16 June | "The Shoop Shoop Song (It's in His Kiss)" | Cher |
| 23 June | "The Shoop Shoop Song (It's in His Kiss)" | Cher |
| 30 June | "The Shoop Shoop Song (It's in His Kiss)" | Cher |
| 7 July | "Wind of Change" | Scorpions |
| 14 July | "Wind of Change" | Scorpions |
| 21 July | "Wind of Change" | Scorpions |
| 28 July | "Wind of Change" | Scorpions |
| 4 August | "Wind of Change" | Scorpions |
| 11 August | "Wind of Change" | Scorpions |
| 18 August | "Wind of Change" | Scorpions |
| 25 August | "Wind of Change" | Scorpions |
| 1 September | "Wind of Change" | Scorpions |
| 8 September | "Bacardi Feeling (Summer Dreamin')" | Kate Yanai |
| 15 September | "Do the Limbo Dance" | David Hasselhoff |
| 22 September | "Bacardi Feeling (Summer Dreamin')" | Kate Yanai |
| 29 September | "(Everything I Do) I Do It for You" | Bryan Adams |
| 6 October | "(Everything I Do) I Do It for You" | Bryan Adams |
| 13 October | "(Everything I Do) I Do It for You" | Bryan Adams |
| 20 October | "(Everything I Do) I Do It for You" | Bryan Adams |
| 27 October | "(Everything I Do) I Do It for You" | Bryan Adams |
| 3 November | "(Everything I Do) I Do It for You" | Bryan Adams |
| 10 November | "(Everything I Do) I Do It for You" | Bryan Adams |
| 17 November | "Let's Talk About Sex" | Salt-n-Pepa |
| 24 November | "Let's Talk About Sex" | Salt-n-Pepa |
| 1 December | "Let's Talk About Sex" | Salt-n-Pepa |
| 8 December | "Let's Talk About Sex" | Salt-n-Pepa |
| 15 December | "Let's Talk About Sex" | Salt-n-Pepa |
| 22 December | "Let's Talk About Sex" | Salt-n-Pepa |
| 29 December | "Let's Talk About Sex" | Salt-n-Pepa |
