List of Billboard Hot 100 number-one singles of the 1970s

The Billboard Hot 100 is the main song chart of the American music industry and is updated every week by the Billboard magazine. During the 1970s the chart was based collectively on each single's weekly physical sales figures and airplay on American radio stations.

Number ones

 * Key
 * – Number-one single of the year



By artist
The following artists achieved four or more number-one hits during the 1970s.

Artists by total number of weeks at number-one
The following artists were featured in top of the chart for the highest total number of weeks during the 1970s.

Songs by total number of weeks at number one
The following songs were featured in top of the chart for the highest total number of weeks during the 1970s.