Laguna di Orbetello, State nature reserve in Orbetello, Italy.

The Laguna di Orbetello di Ponente nature reserve covers 30 hectares in the north-western part of the Orbetello lagoon in Tuscany, within the municipality of Orbetello, Grosseto province. It takes in part of the Giannella tombolo, the sandbar separating the lagoon from the sea, where the Casale Giannella stands, a WWF Italia environmental education centre dedicated to Aurelio Peccei. Behind the salicornia and reed belt grow cork oaks, elms, ashes, poplars and Australian eucalyptus planted as windbreaks.

Protection began in 1971, when the Ministry of Agriculture and Forests, urged by WWF Italia, created an oasis on the first 800 hectares. In 1977 the area was listed as a wetland of international importance under the Ramsar Convention. In 1980 thirty hectares inside the WWF oasis became a state nature reserve, and in 1998 the provincial reserve was set up, covering today's 1,533 hectares. WWF Italia meanwhile bought 60 hectares including the Patanella wood, then 100 more.

The reserve is named after the Orbetello lagoon and is managed by WWF Italy, which runs an environmental education centre at Casale Giannella, dedicated to Aurelio Peccei. The oasis is reached from the Ceriolo area near Albinia, and the nesting of the black-winged stilt observed by Fulco Pratesi helped prompt the area's protection.

Access is from Località Ceriolo, near Albinia, off the Via Aurelia at kilometre 147. The nature trail of the oasis starts there, on the north-western side of the lagoon. The Casale Giannella on the Giannella tombolo, owned by WWF Italia, houses an environmental education centre dedicated to Aurelio Peccei.

The black-winged stilt's nesting here, observed by Fulco Pratesi, prompted the area's protection. Since then, a collaboration with an Austrian conservation group has brought northern bald ibises to the reserve, where they are bred in captivity and reacclimatised to migration routes.