# List of Billboard Adult Contemporary number ones of 1980

In 1980, Billboard magazine published a chart ranking the top-performing songs in the United States in the adult contemporary music (AC) market. The chart, which in 1980 was published under the title Adult Contemporary, has undergone various name changes during its history but has again been published as Adult Contemporary since 1996. In 1980, 20 songs topped the chart based on playlists submitted by radio stations.
The first number one of the year was "Send One Your Love" by Stevie Wonder, which retained its position from the final chart of 1979, and held the top spot for the first two weeks of 1980. In the issue of Billboard dated January 19, it was replaced at number one by "Déjà Vu" by Dionne Warwick, who returned to the number one position in September with "No Night So Long" and was the only act to achieve more than one AC chart-topper in 1980. Solo vocalists dominated the top of the chart during the year: male soloists spent 21 weeks at number one and female soloists 20 weeks. The remainder of the year featured a duet between Teri DeSario and KC, the lead vocalist of KC and the Sunshine Band, and just two chart-toppers by groups. Three of the year's AC number ones also topped Billboard's pop singles chart, the Hot 100: "Woman in Love" by Barbra Streisand, Olivia Newton-John's "Magic", and "Lady" by Kenny Rogers. "Lady", written by Lionel Richie, was a triple chart-topper for Rogers, as it also reached number one on the Hot Country Singles listing.
Four songs tied for the longest unbroken run at number one during the year, each spending five weeks in the top spot. "Lost in Love" by Air Supply was the first to achieve the feat in April and May, and was immediately followed at the top of the chart by "The Rose" by Bette Midler, which held the position for the same length of time. Midler's song came from the film of the same name, in which she played a self-destructive rock star based loosely on Janis Joplin, and won the Golden Globe Award for Best Original Song. Later in the year two other female vocalists had five-week runs at number one: Newton-John with "Magic" and Streisand with "Woman in Love". "Lost in Love" by Air Supply also had a separate spell of a single week at number one, and its total of six weeks atop the chart was the most by a song during the year and meant that Air Supply had the highest total number of weeks in the top spot by an act in 1980. A second track to have two spells at number one was "Give It All You Got" by the jazz trumpeter Chuck Mangione, the official theme tune of the 1980 Winter Olympics. The final AC number one of the year was "More Than I Can Say" by the British vocalist Leo Sayer.

## Chart history

Chart history :
| Issue date | Title | Artist(s) |
| January 5 | "Send One Your Love" | Stevie Wonder |
| January 12 | "Send One Your Love" | Stevie Wonder |
| January 19 | "Déjà Vu" | Dionne Warwick |
| January 26 | "Yes, I'm Ready" | Teri DeSario with KC |
| February 2 | "Yes, I'm Ready" | Teri DeSario with KC |
| February 9 | "Longer" | Dan Fogelberg |
| February 16 | "When I Wanted You" | Barry Manilow |
| February 23 | "Give It All You Got" | Chuck Mangione |
| March 1 | "Daydream Believer" | Anne Murray |
| March 8 | "Give It All You Got" | Chuck Mangione |
| March 15 | "Give It All You Got" | Chuck Mangione |
| March 22 | "Lost in Love" | Air Supply |
| March 29 | "Three Times in Love" | Tommy James |
| April 5 | "Lost in Love" | Air Supply |
| April 12 | "Lost in Love" | Air Supply |
| April 19 | "Lost in Love" | Air Supply |
| April 26 | "Lost in Love" | Air Supply |
| May 3 | "Lost in Love" | Air Supply |
| May 10 | "The Rose" | Bette Midler |
| May 17 | "The Rose" | Bette Midler |
| May 24 | "The Rose" | Bette Midler |
| May 31 | "The Rose" | Bette Midler |
| June 7 | "The Rose" | Bette Midler |
| June 14 | "Little Jeannie" | Elton John |
| June 21 | "Little Jeannie" | Elton John |
| June 28 | "Let Me Love You Tonight" | Pure Prairie League |
| July 5 | "Let Me Love You Tonight" | Pure Prairie League |
| July 12 | "Let Me Love You Tonight" | Pure Prairie League |
| July 19 | "Magic" | Olivia Newton-John |
| July 26 | "Magic" | Olivia Newton-John |
| August 2 | "Magic" | Olivia Newton-John |
| August 9 | "Magic" | Olivia Newton-John |
| August 16 | "Magic" | Olivia Newton-John |
| August 23 | "Why Not Me" | Fred Knoblock |
| August 30 | "Why Not Me" | Fred Knoblock |
| September 6 | "Don't Ask Me Why" | Billy Joel |
| September 13 | "Don't Ask Me Why" | Billy Joel |
| September 20 | "No Night So Long" | Dionne Warwick |
| September 27 | "No Night So Long" | Dionne Warwick |
| October 4 | "No Night So Long" | Dionne Warwick |
| October 11 | "Woman in Love" | Barbra Streisand |
| October 18 | "Woman in Love" | Barbra Streisand |
| October 25 | "Woman in Love" | Barbra Streisand |
| November 1 | "Woman in Love" | Barbra Streisand |
| November 8 | "Woman in Love" | Barbra Streisand |
| November 15 | "Lady" | Kenny Rogers |
| November 22 | "Lady" | Kenny Rogers |
| November 29 | "Lady" | Kenny Rogers |
| December 6 | "Lady" | Kenny Rogers |
| December 13 | "Never Be the Same" | Christopher Cross |
| December 20 | "Never Be the Same" | Christopher Cross |
| December 27 | "More Than I Can Say" | Leo Sayer |