| Issue Date | Song | Artist | | January 3 | "Love Is Forever" | Billy Ocean |
| January 10 | "This Is the Time" | Billy Joel |
| January 17 |
| January 24 |
| January 31 | "At This Moment" | Billy Vera and the Beaters |
| February 7 | "Ballerina Girl" | Lionel Richie |
| February 14 |
| February 21 |
| February 28 |
| March 7 | "You Got It All" | The Jets |
| March 14 |
| March 21 | "Mandolin Rain" | Bruce Hornsby and the Range |
| March 28 |
| April 4 |
| April 11 | "Nothing's Gonna Stop Us Now" | Starship |
| April 18 |
| April 25 | "The Finer Things" | Steve Winwood |
| May 2 |
| May 9 |
| May 16 | "Just to See Her" | Smokey Robinson |
| May 23 | "La Isla Bonita" | Madonna |
| May 30 | "Always" | Atlantic Starr |
| June 6 |
| June 13 | "In Too Deep" | Genesis |
| June 20 |
| June 27 |
| July 4 | "I Wanna Dance with Somebody (Who Loves Me)" | Whitney Houston |
| July 11 |
| July 18 |
| July 25 | "Moonlighting" | Al Jarreau |
| August 1 | "Back in the High Life Again" | Steve Winwood |
| August 8 |
| August 15 |
| August 22 | "Love Power" | Dionne Warwick and Jeffrey Osborne |
| August 29 | "I Just Can't Stop Loving You" | Michael Jackson and Siedah Garrett |
| September 5 |
| September 12 |
| September 19 | "Didn't We Almost Have It All" | Whitney Houston |
| September 26 |
| October 3 |
| October 10 | "Little Lies" | Fleetwood Mac |
| October 17 |
| October 24 |
| October 31 |
| November 7 | "Breakout" | Swing Out Sister |
| November 14 |
| November 21 | "(I've Had) The Time of My Life" | Bill Medley and Jennifer Warnes |
| November 28 |
| December 5 |
| December 12 |
| December 19 | "Got My Mind Set on You" | George Harrison |
| December 26 |
|