List of number-one R&B/hip-hop songs of 2015 (U.S.)

This is a list of songs that reached number one on the Billboard Hot R&B/Hip-Hop Songs chart in the United States during the year 2015. This chart, published weekly by Billboard magazine, measures the popularity of R&B and hip-hop songs based on radio airplay, sales, and streaming activity. It reflects the most popular songs within these genres as consumed by the American public. The list below provides a chronological overview of the songs that achieved the top position during the calendar year, along with the artist(s) credited. The chart's tracking week typically runs from Friday to Thursday, with the chart being published on Billboard's website on Tuesdays and in print on Saturdays.