List of Cash Box Top 100 number-one singles of 1975
# List of Cash Box Top 100 number-one singles of 1975

This is a list of singles that reached number one on the Cash Box Top 100 chart during 1975.

| Issue date | Song | Artist |
| - | - | - |
| January 4 | "Lucy in the Sky with Diamonds" | Elton John |
| January 11 | "You're the First, the Last, My Everything" | Barry White |
| January 18 | "Mandy" | Barry Manilow |
| January 25 | "Please Mr. Postman" | The Carpenters |
| February 1 | "Laughter in the Rain" | Neil Sedaka |
| February 8 | "Boogie On Reggae Woman" | Stevie Wonder |
| February 15 | "You're No Good" | Linda Ronstadt |
| February 22 | "Fire" | Ohio Players |
| March 1 | "Pick Up the Pieces" | The Average White Band |
| March 8 | "Have You Never Been Mellow" | Olivia Newton-John |
| March 15 | "My Eyes Adored You" | Frankie Valli |
| March 22 | "Lady Marmalade" | LaBelle |
| March 29 | "Lovin' You" | Minnie Riperton |
| April 5 | "No No Song" | Ringo Starr |
| April 12 | "Philadelphia Freedom" | Elton John Band |
| April 19 | "Philadelphia Freedom" | Elton John Band |
| April 26 | "(Hey Won't You Play) Another Somebody Done Somebody Wrong Song" | B. J. Thomas |
| May 3 | "He Don't Love You (Like I Love You)" | Tony Orlando and Dawn |
| May 10 | "Jackie Blue" | Ozark Mountain Daredevils |
| May 17 | "Jackie Blue" | Ozark Mountain Daredevils |
| May 24 | "Shining Star" | Earth, Wind & Fire |
| May 31 | "How Long" | Ace |
| June 7 | "Before the Next Teardrop Falls" | Freddy Fender |
| June 14 | "Thank God I'm a Country Boy" | John Denver |
| June 21 | "When Will I Be Loved" | Linda Ronstadt |
| June 28 | "Love Will Keep Us Together" | Captain & Tennille |
| July 5 | "Love Will Keep Us Together" | Captain & Tennille |
| July 12 | "Listen to What the Man Said" | Paul McCartney and Wings |
| July 19 | "The Hustle" | Van McCoy and the Soul City Symphony |
| July 26 | "One of These Nights" | Eagles |
| August 2 | "Please Mr. Please" | Olivia Newton-John |
| August 9 | "Jive Talkin'" | Bee Gees |
| August 16 | "Someone Saved My Life Tonight" | Elton John |
| August 23 | "Get Down Tonight" | KC and the Sunshine Band |
| August 30 | "Get Down Tonight" | KC and the Sunshine Band |
| September 6 | "Fallin' in Love" | Hamilton, Joe Frank & Reynolds |
| September 13 | "Rhinestone Cowboy" | Glen Campbell |
| September 20 | "At Seventeen" | Janis Ian |
| September 27 | "Fame" | David Bowie |
| October 4 | "Run Joey Run" | David Geddes |
| October 11 | "I'm Sorry" | John Denver |
| October 18 | "Mr. Jaws" | Dickie Goodman |
| October 25 | "Bad Blood" | Neil Sedaka |
| November 1 | "Bad Blood" | Neil Sedaka |
| November 8 | "Island Girl" | Elton John |
| November 15 | "Island Girl" | Elton John |
| November 22 | "Fly, Robin, Fly" | Silver Convention |
| November 29 | "That's the Way (I Like It)" | KC and the Sunshine Band |
| December 6 | "That's the Way (I Like It)" | KC and the Sunshine Band |
| December 13 | "That's the Way (I Like It)" | KC and the Sunshine Band |
| December 20 | "Let's Do It Again" | The Staple Singers |
| December 27 | "Saturday Night" | Bay City Rollers |
