List of Hot Adult Contemporary number ones of 1991

In 1991, 18 songs topped the chart, then published under the title Hot Adult Contemporary, based on playlists submitted by radio stations.

[1] In the issue of Billboard dated January 5, English singer-songwriter Elton John was at number one with "You Gotta Love Someone", its fourth week atop the chart.

The longest unbroken run at number one was achieved in August and September by Canadian singer Bryan Adams, whose song "(Everything I Do) I Do It for You" spent eight consecutive weeks in the top spot, the longest run atop the AC chart since 1979.

[6] Several other songs which topped the AC chart also reached the top spot on the Hot 100, including "The First Time" by Surface and "All the Man That I Need" by Whitney Houston, consecutive AC chart-toppers in February, which in addition reached number one on the Hot R&B Singles listing.

"Love Is a Wonderful Thing" was the only song to be displaced from number one and return to the top spot.