Femöre, Nature reserve in Oxelösund archipelago, Sweden

Femöre is a 235-hectare nature reserve on the Femöre peninsula in Oxelösund Municipality, about one kilometre south of Oxelösund town. It protects coniferous forest and outdoor recreation land, with 22 hectares at Femörehuvud and a water area south to the island Rödskär. A reddish-brown gravel path with scattered leaves and a line of weathered wooden posts runs through the reserve.

The land belonged to Nyköping city. In the early 1960s the southern part, Femörehuvud, was sold to the Swedish Armed Forces and remained a protected military area until 2003. The nature reserve was established in 2006, and since 2003 it has contained the decommissioned Femörefortet coastal artillery battery; the Femörehuvud lighthouse site closed in 1974.

The Sörmlandsleden hiking route passes through this place, connecting visitors to a network of natural and historical sites in the region.

The reserve lies about a kilometre south of Oxelösund town and is owned and managed by Oxelösund Municipality. Several hiking trails cross it, among them the long-distance Sörmlandsleden, which continues south past the Femörehuvud headland. The former coastal artillery battery at Femörefortet and the disused Femörehuvud lighthouse stand within the reserve.

The reserve covers 235 hectares, of which 22 lie on Femörehuvud, the southern headland sold to the Swedish Armed Forces in the early 1960s and closed to the public as a military protection area until 2003. South of the peninsula the protected area continues as a large water zone reaching the island of Rödskär.