| Larissos | |
| Name Local: | Λαρίσσος |
| Type: | municipal unit |
| Periph: | West Greece |
| Periphunit: | Achaea |
| Pop Municunit: | 4813 |
| Population As Of: | 2021 |
| Area Municunit: | 225.73 |
| Elevation: | 98 |
| Coordinates: | 38.1°N 46°W |
| Postal Code: | 270 52 |
| Area Code: | 26930 |
| Licence: | ΑΧ |
Larissos (Greek, Modern (1453-);: Λαρίσσος) is a former municipality in Achaea, West Greece, Greece. Since the 2011 local government reform it is part of the municipality West Achaea, of which it is a municipal unit.[1] The municipal unit has an area of 225.729 km2.[2] Its seat of administration was in the village Lappas, part of the community Metochi. The municipal unit was named after the river Larissos, which flows through it. It is the westernmost municipal unit of Achaea, stretching along the Ionian Sea coast and the border with Elis to the southern part of the Movri hills. It is about 32 km southwest of Patras and 50 km north of Pyrgos.
The area is mostly flat, except the Movri hills in the southeast and the lower Mavra Vouna hills in the northwest, near Cape Araxos. Araxos Airport (GPA).
The municipal unit Larissos is subdivided into the following communities (constituent villages in brackets):
| Year | Population | |
|---|---|---|
| 1991 | 7,414 | |
| 2001 | 8,858 | |
| 2011 | 5,650 | |
| 2021 | 4,813 |