Birdham is a village and civil parish in the Chichester District of West Sussex, England. It is located on the Manhood Peninsula, c. 5 miles (8.0 km) south-west of the city of Chichester. The parish church is dedicated to St James, although the dedication was to St. Leonard until c. 1900.

The Manhood Peninsula is in the southwest of West Sussex in England. It has the English Channel to its south and Chichester to the north. It is bordered to its west by Chichester Harbour and to its east by Pagham Harbour, its southern headland being Selsey Bill.