Petra, Lesbos
Petra is a former municipality on the island of Lesbos, North Aegean, Greece. Since the 2019 local government reform, it is a municipal unit of the municipality of West Lesbos.
Petra is in northwestern Lesbos and comprises the villages Petra, Skoutaros, Stypsi, Lafionas, and Ypsilometopo, and the settlements Petri and Anaxos. The municipality has a land area of, and a population of 3,029 at the 2021 census. Its largest towns are Pétra, Stýpsi, and Skoutáros. The town of Mithymna is approximately north of Petra.
The region has olive groves, and also low forests primarily of pine, but also coppice oaks, cypress, and fruit-bearing trees.
Historical population
| Year | Community population | Municipality population |
| 1981 | 994 | - |
| 1991 | 915 | 3,603 |
| 2001 | 1,246 | 3,749 |
| 2011 | 1,208 | 3,358 |
| 2021 | 1,149 | 3,029 |