Gerolimenas is a picturesque small coastal village, a municipal unit of Oitylo, at the southern end of the Mani Peninsula, in Laconia, Peloponnese, Greece.
Τhe name, which means "Old Harbour", is thought to derive from the ancient "Ιερός Λιμήν" (Ieros Limen), meaning "Sacred Harbor". One of the remotest settlements in the Peloponnese, until the 1970s it was reached mainly by boat.
In the past it was a major fishing center, and featured substantial infrastructure such as a shipyard, ice supplies, and a fish market.
Today the main industry is tourism. Αccording to the 2001 census its population was 55 inhabitants.