GNS Science
| Te Pū Ao (Māori) | |
| Agency overview | |
|---|---|
| Formed | 1865 | 
| Preceding agencies | 
 | 
| Headquarters | 1 Fairway Drive, Avalon, New Zealand | 
| Employees | 390 | 
| Website | https://www.gns.cri.nz/ | 
GNS Science (Māori: Te Pū Ao), officially registered as the Institute of Geological and Nuclear Sciences Limited, is a New Zealand Crown Research Institute. It focuses on geology, geophysics (including seismology and volcanology), and nuclear science (particularly ion-beam technologies, isotope science and carbon dating). From 1 July 2025 GNS Science will become part of the new Public Research Organisation New Zealand Institute for Earth Science.