East Itchenor is the site of a demolished 'manor' house, on the Manhood Peninsula, in West Sussex, England.

East Itchenor derives its name from the Anglo-Saxon chieftain Icca, who laid claim to the shores of East and West Itchenor, as both settlements were originally known as Iccannore ('Icca's shore').

[2] The Domesday Book also makes mention of two manors in Icenore, necessitating the distinction between 'East' and 'West': the manor covering East Itchenor was owned by the Bishop of Exeter Osbern FitzOsbern and was an endowment of the College of Bosham.

[3] East Itchenor was then held by Roger de Montgomery who attached it to his manor of Birdham.

[4] Never consisting of more than a few families employed in farming on the estate its population fell so that in 1440 the Bishop of Chichester Richard Praty united its parish with Birdham.