# List of Billboard Streaming Songs number ones of 2015

This is a list of songs that reached number one on the Billboard magazine Streaming Songs chart in 2015.

## Chart history

Key :
| † | Indicates best-charting streaming song of 2015 |
| Issue date | Song | Artist(s) | Weekly streams |
| January 3 | "Blank Space" | Taylor Swift | 11.4 million |
| January 10 | "All About That Bass" | Meghan Trainor | 9.5 million |
| January 17 | "Blank Space" | Taylor Swift | 10.9 million |
| January 24 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 11.6 million |
| January 31 | "Shake It Off" | Taylor Swift | 16.7 million |
| February 7 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 15.1 million |
| February 14 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 24.5 million |
| February 21 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 17.9 million |
| February 28 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 18.2 million |
| March 7 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 19.8 million |
| March 14 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 18.8 million |
| March 21 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 17.4 million |
| March 28 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 16.9 million |
| April 4 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 19.1 million |
| April 11 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 16.2 million |
| April 18 | "Uptown Funk" | Mark Ronson featuring Bruno Mars | 15.8 million |
| April 25 | "See You Again" | Wiz Khalifa featuring Charlie Puth | 25 million |
| May 2 | "See You Again" | Wiz Khalifa featuring Charlie Puth | 24.6 million |
| May 9 | "See You Again" | Wiz Khalifa featuring Charlie Puth | 24 million |
| May 16 | "See You Again" | Wiz Khalifa featuring Charlie Puth | 24 million |
| May 23 | "See You Again" | Wiz Khalifa featuring Charlie Puth | 24.5 million |
| May 30 | "See You Again" | Wiz Khalifa featuring Charlie Puth | 22.9 million |
| June 6 | "See You Again" | Wiz Khalifa featuring Charlie Puth | 22.7 million |
| June 13 | "See You Again" | Wiz Khalifa featuring Charlie Puth | 20.7 million |
| June 20 | "Trap Queen" † | Fetty Wap | 21.4 million |
| June 27 | "Trap Queen" † | Fetty Wap | 20.4 million |
| July 4 | "Trap Queen" † | Fetty Wap | 19.4 million |
| July 11 | "Trap Queen" † | Fetty Wap | 19.4 million |
| July 18 | "Trap Queen" † | Fetty Wap | 19.6 million |
| July 25 | "Trap Queen" † | Fetty Wap | 18.9 million |
| August 1 | "Trap Queen" † | Fetty Wap | 18.4 million |
| August 8 | "Watch Me (Whip/Nae Nae)" | Silentó | 18.2 million |
| August 15 | "Watch Me (Whip/Nae Nae)" | Silentó | 19 million |
| August 22 | "Watch Me (Whip/Nae Nae)" | Silentó | 20.7 million |
| August 29 | "Watch Me (Whip/Nae Nae)" | Silentó | 21.2 million |
| September 5 | "Watch Me (Whip/Nae Nae)" | Silentó | 16.8 million |
| September 12 | "Watch Me (Whip/Nae Nae)" | Silentó | 22.3 million |
| September 19 | "Watch Me (Whip/Nae Nae)" | Silentó | 26.2 million |
| September 26 | "Watch Me (Whip/Nae Nae)" | Silentó | 23.5 million |
| October 3 | "The Hills" | The Weeknd | 18.3 million |
| October 10 | "Watch Me (Whip/Nae Nae)" | Silentó | 19.7 million |
| October 17 | "The Hills" | The Weeknd | 18.5 million |
| October 24 | "Watch Me (Whip/Nae Nae)" | Silentó | 22.4 million |
| October 31 | "The Hills" | The Weeknd | 20 million |
| November 7 | "The Hills" | The Weeknd | 19.4 million |
| November 14 | "Hello" | Adele | 61.6 million |
| November 21 | "Hello" | Adele | 47.4 million |
| November 28 | "Hello" | Adele | 44.7 million |
| December 5 | "Hello" | Adele | 34.7 million |
| December 12 | "Hello" | Adele | 35.5 million |
| December 19 | "Hello" | Adele | 27.5 million |
| December 26 | "Hello" | Adele | 26.4 million |