List of Billboard 200 number-one albums of 1991
These are the Billboard magazine number-one albums of 1991, per the Billboard 200.
Mariah Carey's debut album became the best-selling album in 1991, topping the charts for 11 consecutive weeks.
Chart history
| † | Indicates best performing album of 1991 |
| Issue date | Album | Artist(s) | Label |
|---|---|---|---|
| January 5 | To the Extreme | Vanilla Ice | SBK |
| January 12 | |||
| January 19 | |||
| January 26 | |||
| February 2 | |||
| February 9 | |||
| February 16 | |||
| February 23 | |||
| March 2 | Mariah Carey † | Mariah Carey | Columbia |
| March 9 | |||
| March 16 | |||
| March 23 | |||
| March 30 | |||
| April 6 | |||
| April 13 | |||
| April 20 | |||
| April 27 | |||
| May 4 | |||
| May 11 | |||
| May 18 | Out of Time | R.E.M. | Warner Bros. |
| May 25 | Time, Love & Tenderness | Michael Bolton | Columbia |
| June 1 | Out of Time | R.E.M. | Warner Bros. |
| June 8 | Spellbound | Paula Abdul | Captive/Virgin |
| June 15 | |||
| June 22 | Niggaz4Life | N.W.A | Ruthless |
| June 29 | Slave to the Grind | Skid Row | Atlantic |
| July 6 | For Unlawful Carnal Knowledge | Van Halen | Warner Bros. |
| July 13 | |||
| July 20 | |||
| July 27 | Unforgettable... with Love | Natalie Cole | Elektra |
| August 3 | |||
| August 10 | |||
| August 17 | |||
| August 24 | |||
| August 31 | Metallica | Metallica | Elektra |
| September 7 | |||
| September 14 | |||
| September 21 | |||
| September 28 | Ropin' the Wind | Garth Brooks | Capitol |
| October 5 | Use Your Illusion II | Guns N' Roses | Geffen |
| October 12 | |||
| October 19 | Ropin' the Wind | Garth Brooks | Capitol |
| October 26 | |||
| November 2 | |||
| November 9 | |||
| November 16 | |||
| November 23 | |||
| November 30 | |||
| December 7 | Achtung Baby | U2 | Island |
| December 14 | Dangerous | Michael Jackson | Epic |
| December 21 | |||
| December 28 |