Birdham is a village and civil parish in the Chichester District of West Sussex, England.

The village sits on the shores of Chichester Harbour and is home to a locked marina on the site of a former tide millpond.

Birdham's name derives from the Old English bridd and hām, and means a settlement frequented by young birds.

Unfortunately, most of these are forgeries,[7][8] Birdham was located in the ancient hundred of Wittering[9] in Sussex according to the Domesday Book of 1086.

The enclosure of Manhood Common led to the development of small farms but the rapid rise in population only began in the 1930s.

During World War II, the tide mill and associated boat yards became HMS Sea Serpent in 1942.