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