List of Billboard Hot 100 number ones of 2023

The Billboard Hot 100 is a chart that ranks the best-performing songs in the United States. Its data is compiled by Luminate Data and published by American music magazine Billboard. The chart is based on each song's weekly physical and digital sales collectively, the amount of airplay impressions it receives on American radio stations, and its audio and video streams on online digital music platforms. "Last Night" by American country singer Morgan Wallen is the year's longest-running number-one song on the Hot 100 in 2023, having spent sixteen weeks at the top spot; it subsequently topped the Billboard Year-End Hot 100. "Flowers" by American singer Miley Cyrus is the longest running number-one by a female artist, ruling the Hot 100 for eight weeks. "Paint the Town Red" by Doja Cat became the first rap song to top the Hot 100 in over a year. American singer Brenda Lee became the oldest artist of all time to reach number one on the Hot 100 (age 78), when "Rockin' Around the Christmas Tree" (1958) topped the chart in December 2023; concurrently, the song also became the third holiday single to top the Hot 100 and it broke the record for longest climb to the top spot of the Hot 100 since release (65 years), surpassing Mariah Carey's 1994 single "All I Want for Christmas Is You" (25 years).

Twenty artists charted at number one in 2023, with ten―Wallen, Jimin, SZA, Jung Kook, Latto, Jason Aldean, Oliver Anthony, Zach Bryan, Kacey Musgraves and J. Cole―reaching the top spot for the first time. SZA and Drake charted two number-one songs this year, whereas Taylor Swift became the first artist in history to chart three number-one songs from three different albums on the Hot 100 in one calendar year. Swift's "Is It Over Now?" (2023) dethroned her own "Cruel Summer" (2023) at number one on the chart dated November 11, 2023, and the vice versa occurred the next week, making Swift the first woman to replace herself at the top spot two and three times. She was the first ever artist to replace themselves three times on the Hot 100 in history. Four country songs—Wallen's "Last Night", Aldean's "Try That in a Small Town", Anthony's "Rich Men North of Richmond", and "I Remember Everything" by Bryan and Musgraves—held the number-one spot on the Hot 100 in consecutive weeks for the first time ever.