| Name | Gender | Appearances | Top Performance |
|---|---|---|---|
| Rick Martin | Male | 2 | 11th |
| Trent Martin | Male | 3 | 2nd |
| Ernesto Martín Olivera | Male | 1 | 121st |
| Javier Martin Prieto | Male | 1 | 29th |
| Artur Miguel Martins Pereira | Male | 1 | 17th |
| Trevor Maru | Male | 0 | - |
| Heirama Maruhi | Male | 2 | 1st |
| Hereani Maruhi | Female | 1 | 126th |
| Team Mary & Kath | Female | 1 | 5th |
| Team Mary and Sandy | Male | 2 | 7th |
| Erin Mascelle | Female | 2 | 10th |
| Dragan Masnikosa | Male | 3 | 30th |
| Antony Mason | Male | 1 | 28th |
| Gavin Mason | Male | 1 | 56th |
| Ryan Mason | Male | 1 | 31st |
| Double Mason Brothers | Male | 1 | 11th |
| Paul Massie | Male | 10 | 3rd |
| Team Mataiawhea Te Kere & Tuparahuia Pita | Female | 1 | 9th |
| Lucy Matehaere | Female | 4 | 2nd |
| Blair Matheson | Male | 0 | - |
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