| Iaaf: | NZL |
| Flagcaption: | Flag of New Zealand |
| Games Link: | 2005 World Athletics Championships |
| Year: | 2005 |
| Games: | World Athletics Championships |
| Fedname: | Athletics New Zealand |
| Location: | Helsinki, Finland |
| Date: | 6–14 August 2005 |
| Competitors: | 14 |
| Competitors Men: | 6 |
| Competitors Women: | 8 |
| Gold: | 0 |
| Silver: | 1 |
| Bronze: | 0 |
| Appearances: | auto |
New Zealand competed at the 2005 World Championships in Athletics held in Helsinki, Finland. They won one medal, a silver, which was won by Valerie Vili (now Valerie Adams) in the shot put. Vili originally won the bronze medal, but was upgraded to silver after original gold medallist Nadzeya Ostapchuk subsequently failed a drug test.[1] They placed 26th on the medal table.[2]
| Athlete | Event | Heat/Qualifying | Semifinal | Final | |||
|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | ||
| Craig Barrett | Men's 50km walk | DQF | N/A | ||||
| Adrian Blincoe | Men's 1500m | 3:39.54 | 10 q | 3:38.20 | 9 | did not advance | |
| Shireen Crumpton | Women's marathon | 2:37:03 PB | 33 | ||||
| Beatrice Faumuina | Women's discus | 59.81m | 5 q | 62.73m | 4 | ||
| Melina Hamilton | Women's pole vault | 4.15m | 12 | did not advance | |||
| Liza Hunter-Galvan | Women's marathon | 2:39:47 | 39 | ||||
| Rebecca Moore | Women's marathon | 2:50:36 | 45 | ||||
| Kim Smith | Women's 10,000m | 31:24.29 | 15 | ||||
| Jason Stewart | Men's 800m | 1:50.35 | 4 | did not advance | |||
| Kay Ulrich | Women's marathon | DNF | N/A | ||||
| Valerie Vili | Women's shot put | 19.87m | 1 Q | 19.62m | |||
| Nick Willis | Men's 1500m | 3:39.89 | 3 Q | 3:40.87 | 6 | did not advance | |
| Scott Winton | Men's marathon | 2:19:41 | 28 | ||||
| Jonathan Wyatt | Men's marathon | 2:23:19 | 43 | ||||