| Agency Name: | National Laboratory of Energy and Geology |
| Nativename: | Laboratório Nacional de Energia e Geologia |
| Preceding1: | INETI |
| Jurisdiction: | Government of Portugal |
| Headquarters: | Amadora, Portugal |
| Region Code: | PT |
| Chief1 Name: | Teresa Ponce de Leão |
| Chief1 Position: | President |
| Website: | www.lneg.pt |
Laboratório Nacional de Energia e Geologia (National Laboratory of Energy and Geology) is a Portuguese public R&D institution in the fields of energy and geology. It was created in 2007 by the merger of the former National Institute of Engineering, Technology and Innovation with several smaller research and regulation bodie.s[1]