Coordinates: 50°05′20″N 5°06′00″W / 50.089°N 5.100°W
St Anthony-in-Meneage (Cornish: Lannentenin) is a coastal civil parish and village in Cornwall, England, United Kingdom. The parish is in the Meneage district of the Lizard peninsula. In the 2001 census the parish had a population of 171, increasing to 168 at the 2011 census.
The village is situated on a peninsula between the Helford River and Gillan Harbour on the west side of Falmouth Bay, five miles (8 km) south of Falmouth and seven miles (11 km) east of Helston at grid reference SW 782 256. It largely consists of a church and holiday lets owned by a local holiday company that is based in the village. The peninsula ends at Dennis Head, the site of an early Celtic fortress.
The parish is divided by Gillan Harbour and the tidal Gillan Creek. The village and parish church are on the north side of Gillan Harbour. South of the harbour are the hamlets of Carne, Flushing (not to be confused with the larger village of Flushing north of Falmouth) and Gillan, and further inland the small ancient settlements of Boden and Trewarnevas. Bosahan House was a late 19th century country house until it was demolished in the 1950s and replaced by a smaller house. Bosahan Garden is open to visitors. It was developed by the Grylls family and by Arthur Pendarves Vivian who took over the estate in 1885. In The Gardener magazine it was described as 'the most Cornish of all Cornish gardens' in 1909.