List of Cash Box Top 100 number-one singles of 1984
# List of Cash Box Top 100 number-one singles of 1984

This is a list of singles that reached number one on the Cash Box Top 100 Singles chart in 1984, present in chronological order.

Key :

| † | Indicates best-performing single of 1984 |
| - | - |
| Issue date | Song | Artist |
| January 7 | "Union of the Snake" | Duran Duran |
| January 14 | "Union of the Snake" | Duran Duran |
| January 21 | "Owner of a Lonely Heart" | Yes |
| January 28 | "Owner of a Lonely Heart" | Yes |
| February 4 | "Karma Chameleon" | Culture Club |
| February 11 | "Karma Chameleon" | Culture Club |
| February 18 | "Karma Chameleon" | Culture Club |
| February 25 | "Jump" | Van Halen |
| March 3 | "Jump" | Van Halen |
| March 10 | "99 Luftballons" | Nena |
| March 17 | "Girls Just Want to Have Fun" | Cyndi Lauper |
| March 24 | "Girls Just Want to Have Fun" | Cyndi Lauper |
| March 31 | "Footloose" | Kenny Loggins |
| April 7 | "Footloose" | Kenny Loggins |
| April 14 | "Footloose" | Kenny Loggins |
| April 21 | "Against All Odds (Take a Look at Me Now)" | Phil Collins |
| April 28 | "Against All Odds (Take a Look at Me Now)" | Phil Collins |
| May 5 | "Against All Odds (Take a Look at Me Now)" | Phil Collins |
| May 12 | "Hello" | Lionel Richie |
| May 19 | "Hello" | Lionel Richie |
| May 26 | "Let's Hear It for the Boy" | Deniece Williams |
| June 2 | "Let's Hear It for the Boy" | Deniece Williams |
| June 9 | "Time After Time" | Cyndi Lauper |
| June 16 | "The Reflex" | Duran Duran |
| June 23 | "The Reflex" | Duran Duran |
| June 30 | "Dancing in the Dark" | Bruce Springsteen |
| July 7 | "Dancing in the Dark" | Bruce Springsteen |
| July 14 | "When Doves Cry" † | Prince |
| July 21 | "When Doves Cry" † | Prince |
| July 28 | "When Doves Cry" † | Prince |
| August 4 | "When Doves Cry" † | Prince |
| August 11 | "Ghostbusters" | Ray Parker Jr. |
| August 18 | "Ghostbusters" | Ray Parker Jr. |
| August 25 | "What's Love Got to Do with It" | Tina Turner |
| September 1 | "What's Love Got to Do with It" | Tina Turner |
| September 8 | "What's Love Got to Do with It" | Tina Turner |
| September 15 | "Missing You" | John Waite |
| September 22 | "Missing You" | John Waite |
| September 29 | "Let's Go Crazy" | Prince and the Revolution |
| October 6 | "Let's Go Crazy" | Prince and the Revolution |
| October 13 | "I Just Called to Say I Love You" | Stevie Wonder |
| October 20 | "I Just Called to Say I Love You" | Stevie Wonder |
| October 27 | "I Just Called to Say I Love You" | Stevie Wonder |
| November 3 | "I Just Called to Say I Love You" | Stevie Wonder |
| November 10 | "Purple Rain" | Prince and the Revolution |
| November 17 | "Purple Rain" | Prince and the Revolution |
| November 24 | "Wake Me Up Before You Go-Go" | Wham! |
| December 1 | "Wake Me Up Before You Go-Go" | Wham! |
| December 8 | "I Feel for You" | Chaka Khan |
| December 15 | "The Wild Boys" | Duran Duran |
| December 22 | "The Wild Boys" | Duran Duran |
| December 29 | "Like a Virgin" | Madonna |
