Plomari (Greek: Πλωμάρι) is a town and a former municipality on the island of Lesbos, North Aegean, Greece.

The municipal unit of Plomari is the southernmost on Lesbos Island and has a land area of 122.452 km2[3] and a 2021 census population of 4,852.

Its largest towns or villages are Plomári, the former municipal seat, Plagiá, Palaiochóri, Megalochóri, and Akrási.

The local festival (or "panigiri") season kicks off in mid-July with an ouzo festival, and culminates towards the end month in celebrations honouring Agios Haralambos and including such rural activities as horse races.

Its territory corresponded with that of the current municipal unit Plomari and the village Stavros.