List of Billboard number-one dance songs of 2019

These are the Billboard magazine's number-one dance songs of 2019 on the Dance Club Songs and the Dance/Mix Show Airplay.

The Hot Dance Club Songs was first published in 1976, ranking the most popular songs on dance club based on reports from a national sample of club DJs.

The Dance/Mix Show Airplay was first published in 2003, ranking the songs based on dance radio airplay and mix show plays on top 40 radio and select rhythmic radio as measured by Mediabase.

Jennifer Lopez scored her 17th number one with " Medicine " this chart placing her in a joint sixth place for most number ones on the Dance/Club chart.
Avicii placed two number ones on this chart in 2019, " SOS " in June and " Heaven " in July, the first time an artist that has done so posthumously
Lil Nas X 's " Old Town Road " featuring Billy Ray Cyrus spent 4 non-consecutive weeks, one week in May and three weeks in June
Lizzo had two number ones on this chart in 2019: " Truth Hurts ," which spent nine weeks at number one between September 7 and November 2, and " Good as Hell " the following December