This is a list of number-one hit singles in 1966 in New Zealand, starting with the first chart dated, 25 March 1966.
| Week | Artist | Title |
|---|---|---|
| 25 March 1966 | Herman's Hermits | "A Must to Avoid" |
| 1 April 1966 | ||
| 8 April 1966 | Nancy Sinatra | "These Boots Are Made for Walkin'" |
| 15 April 1966 | ||
| 22 April 1966 | Overlanders | "Michelle" |
| 29 April 1966 | Simon & Garfunkel | "Homeward Bound" |
| 6 May 1966 | Overlanders | "Michelle" |
| 13 May 1966 | Simon & Garfunkel | "Homeward Bound" |
| 20 May 1966 | ||
| 27 May 1966 | ||
| 3 June 1966 | The Kinks | "Dedicated Follower of Fashion" |
| 10 June 1966 | ||
| 17 June 1966 | ||
| 24 June 1966 | The Beach Boys | "Sloop John B" |
| 1 July 1966 | ||
| 8 July 1966 | The Beatles | "Paperback Writer" |
| 15 July 1966 | ||
| 22 July 1966 | ||
| 29 July 1966 | Manfred Mann | "Pretty Flamingo" |
| 5 August 1966 | ||
| 12 August 1966 | ||
| 19 August 1966 | The Lovin' Spoonful | "Daydream" |
| 26 August 1966 | ||
| 2 September 1966 | ||
| 9 September 1966 | The Troggs | "Wild Thing" |
| 16 September 1966 | ||
| 23 September 1966 | The Beatles | "Yellow Submarine" |
| 30 September 1966 | ||
| 7 October 1966 | ||
| 14 October 1966 | The Beatles | "Eleanor Rigby" |
| 21 October 1966 | The Troggs | "With a Girl Like You" |
| 28 October 1966 | ||
| 4 November 1966 | ||
| 11 November 1966 | Tommy Roe | "Sweet Pea" |
| 18 November 1966 | ||
| 25 November 1966 | Peter & Gordon | "Lady Godiva" |
| 1 December 1966 | ||
| 8 December 1966 | ||
| 15 December 1966 | The Hollies | "Stop! Stop! Stop!" |
| 22 December 1966 | ||
| 29 December 1966 |