This is a list of Number 1 hit singles in 1975 in New Zealand, starting with the first chart dated, 17 January 1975.[1]
| Week | Artist | Title | |
|---|---|---|---|
| 3 January 1975 | |||
| 10 January 1975 | |||
| 17 January 1975 | John Hanlon | "Lovely Lady" | |
| 24 January 1975 | |||
| 31 January 1975 | |||
| 7 February 1975 | Billy Swan | "I Can Help" | |
| 14 February 1975 | |||
| 21 February 1975 | |||
| 28 February 1975 | |||
| 7 March 1975 | The Carpenters | "Please Mr. Postman" | |
| 14 March 1975 | |||
| 21 March 1975 | |||
| 28 March 1975 | David Bowie | "Young Americans" | |
| 4 April 1975 | |||
| 11 April 1975 | Helen Reddy | "Free & Easy" | |
| 18 April 1975 | |||
| 25 April 1975 | |||
| 2 May 1975 | |||
| 9 May 1975 | Frankie Valli | "My Eyes Adored You" | |
| 16 May 1975 | |||
| 23 May 1975 | |||
| 30 May 1975 | |||
| 6 June 1975 | Bob Hudson | "The Newcastle Song" | |
| 13 June 1975 | |||
| 20 June 1975 | |||
| 27 June 1975 | Mark Williams | "Yesterday Was Just the Beginning of My Life" | |
| 4 July 1975 | Bob Hudson | "The Newcastle Song" | |
| 11 July 1975 | Mark Williams | "Yesterday Was Just the Beginning of My Life" | |
| 18 July 1975 | |||
| 25 July 1975 | Bob Hudson | "The Newcastle Song" | |
| 1 August 1975 | George Baker Selection | "Paloma Blanca" | |
| 8 August 1975 | Bob Hudson | "The Newcastle Song" | |
| 15 August 1975 | George Baker Selection | "Paloma Blanca" | |
| 22 August 1975 | |||
| 29 August 1975 | ABBA | "I Do, I Do, I Do, I Do, I Do" | |
| 5 September 1975 | George Baker Selection | "Paloma Blanca" | |
| 12 September 1975 | |||
| 19 September 1975 | Freddy Fender | "Wasted Days & Wasted Nights" | |
| 26 September 1975 | |||
| 3 October 1975 | |||
| 10 October 1975 | |||
| 17 October 1975 | |||
| 24 October 1975 | |||
| 31 October 1975 | |||
| 7 November 1975 | |||
| 14 November 1975 | |||
| 21 November 1975 | Johnny Nash | "Tears On My Pillow" | |
| 28 November 1975 | |||
| 5 December 1975 | Freddy Fender | "Wasted Days and Wasted Nights" | |
| 12 December 1975 | |||
| 19 December 1975 | |||
| 26 December 1975 |