| Gunnar Birgisson | |
| Order: | Mayor of Fjallabyggð |
| Birth Date: | 30 September 1947 |
| Birth Place: | Reykjavík, Iceland |
| Death Place: | Reykjavík, Iceland |
| Party: | Independence Party |
Gunnar Ingi Birgisson (30 September 1947 – 14 June 2021) was an Icelandic politician.[1] Birgir was a member of Alþingi and a mayor of Kópavogur and Fjallabyggð. He coined the saying "Það er gott að búa í Kópavogi" ("It's good to live in Kópavogur"), which is now regarded as the unofficial motto of Kópavogur. He held a doctorate in engineering from the University of Missouri. His doctoral essay about how lava fields performed as foundations. His maternal half brother, Kristinn Halldór Gunnarsson, was also a prominent politician.