New Zealand at the 1964 Summer Olympics
New Zealand at the 1964 Summer Olympics was represented by a team of 64 competitors, 56 men and eight women, who took part in 35 events across 11 sports. Selection of the team for the Games in Tokyo, Japan, was the responsibility of the New Zealand Olympic and British Empire Games Association. New Zealand's flagbearer at the opening ceremony was Peter Snell. The New Zealand team finished equal 12th on the medal table, winning a total of five medals, three of which were gold.
Medal tables
| Medal | Name | Sport | Event | Date |
| Athletics | Men's 800 metres | 16 October | ||
| Athletics | Men's 1500 metres | 21 October | ||
Earle Wells | Sailing | Flying Dutchman | 21 October | |
| Athletics | Women's 800 metres | 20 October | ||
| Athletics | Men's 1500 metres | 21 October |
Athletics
Track and road
Field
Boxing
Cycling
Five cyclists represented New Zealand in 1964.Road
;Men's individual road race| Athlete | Time | Rank |
| Laurie Byers | 4:39:51.74 | 10 |
| Max Grace | 4:39:51.83 | 66 |
| Richard Johnstone | 4:39:51.74 | 17 |
| Des Thomson | 4:39:51.81 | 61 |
;Men's team time trial
| Athlete | Time | Rank |
| Laurie Byers Arthur Candy Max Grace Richard Johnstone | 2:38:37.35 | 18 |
Equestrian
Jumping
Gymnastics
Women's individual
;Apparatus qualifying and all-aroundNone of the New Zealand gymnasts qualified for any of the apparatus finals.
Field hockey
Men's tournament
;Team roster;Group A
| Team | Pld | W | D | L | GF | GA | Pts | Qualification |
| 6 | 6 | 0 | 0 | 17 | 3 | 12 | Advance to semi-finals | |
| 6 | 4 | 0 | 2 | 16 | 5 | 8 | Advance to semi-finals | |
| 6 | 3 | 1 | 2 | 7 | 9 | 7 | 5th–8th classification round | |
| 6 | 3 | 0 | 3 | 6 | 6 | 6 | 5th–8th classification round | |
| 6 | 2 | 0 | 4 | 5 | 12 | 4 | ||
 Rhodesia | 6 | 1 | 1 | 4 | 4 | 16 | 3 | |
| 6 | 1 | 0 | 5 | 6 | 10 | 2 |