| Date | Song | Artist |
|---|---|---|
| January 1 | "Rockabye" | Clean Bandit featuring Sean Paul and Anne-Marie |
| January 8 | ||
| January 15 | ||
| January 22 | "Shape of You" † | Ed Sheeran |
| January 29 | ||
| February 5 | ||
| February 12 | ||
| February 19 | ||
| February 26 | ||
| March 5 | ||
| March 12 | ||
| March 19 | "Despacito" ‡ | Luis Fonsi featuring Daddy Yankee |
| March 26 | ||
| April 2 | ||
| April 9 | ||
| April 16 | ||
| April 23 | ||
| April 30 | ||
| May 7 | ||
| May 14 | ||
| May 21 | ||
| May 28 | "Bon Appétit" | Katy Perry featuring Migos |
| June 4 | ||
| June 11 | "Thunder" | Imagine Dragons |
| June 18 | ||
| June 25 | ||
| July 2 | ||
| July 9 | ||
| July 16 | ||
| July 23 | ||
| July 30 | "Wild Thoughts" | DJ Khaled featuring Rihanna and Bryson Tiller |
| August 6 | ||
| August 13 | "Mi Gente" | J Balvin featuring Willy William |
| August 20 | ||
| August 27 | ||
| September 3 | ||
| September 10 | ||
| September 17 | ||
| September 24 | "Look What You Made Me Do" | Taylor Swift |
| October 1 | ||
| October 8 | "Swish Swish" | Katy Perry featuring Nicki Minaj |
| October 15 | ||
| October 22 | ||
| October 29 | ||
| November 5 | "Havana" | Camila Cabello featuring Young Thug |
| November 12 | ||
| November 19 | ||
| November 26 | ||
| December 3 | ||
| December 10 | "Perfect" | Ed Sheeran |
| December 17 | ||
| December 24 | ||
| December 31 |
