This lists songs that hit number one on the charts in the US during 1971. If a song spent nonconsecutive weeks at number one, the number of weeks for each occurrence at the top is shown in parenthesis.
| Date | Artist - Title | Weeks at #1 |
| December 20 1970 – January 16 1971 | George Harrison - My Sweet Lord | 4 |
| January 17 – February 6 1971 | Tony Orlando and Dawn - Knock Three Times | 3 |
| February 7 – March 13 1971 | Osmonds - One Bad Apple | 5 |
| March 14 – 27 1971 | Janis Joplin - Me and Bobby McGee | 2 |
| March 28 – April 10 1971 | Temptations - Just My Imagination (Running Away With Me) | 2 |
| April 11 – May 22 1971 | Three Dog Night - Joy to the World | 6 |
| May 23 – June 5 1971 | Rolling Stones - Brown Sugar | 2 |
| June 6 – 12 1971 | Honey Cone - Want Ads | 1 |
| June 13 – July 17 1971 | Carole King - I Feel The Earth Move/It's Too Late | 5 |
| July 18 – 24 1971 | Raiders - Indian Reservation (The Lament of the Cherokee Reservation Indian) | 1 |
| July 25 – 31 1971 | James Taylor - You've Got a Friend | 1 |
| August 1 – 28 1971 | Bee Gees - How Can You Mend a Broken Heart | 4 |
| August 29 – September 4 1971 | Paul McCartney - Uncle Albert/Admiral Halsey | 1 |
| September 5 – 25 1971 | Donny Osmond - Go Away Little Girl | 3 |
| September 26 – October 30 1971 | Rod Stewart - Maggie May | 5 |
| October 31 – November 13 1971 | Cher - Gypsies, Tramps and Thieves | 2 |
| November 14 – 27 1971 | Issac Hayes - Theme From 'Shaft' | 2 |
| November 28 – December 18 1971 | Sly and The Family Stone - Family Affair | 3 |
| December 19 1971 – January 8 1972 | Melanie - Brand New Key | 3 |
19 different songs hit number one in the US during 1971.
Top 5 Songs of 1971

1: Three Dog Night - Joy To The World
2: Rod Stewart - Maggie May
3: Carole King - It's Too Late/I Feel The Earth Move
4: Osmonds - One Bad Apple
5: Bee Gees - How Can You Mend A Broken Heart
2: Rod Stewart - Maggie May
3: Carole King - It's Too Late/I Feel The Earth Move
4: Osmonds - One Bad Apple
5: Bee Gees - How Can You Mend A Broken Heart