Chessel Bay (grid reference SU440126) is the name given to the bay formed on the eastern side of a large bend in the River Itchen to the east of the district of Northam in the city of Southampton, Hampshire, England. Chessel Bay Local Nature Reserve (LNR), designated by the City Council in 1991, is located here. It comprises a narrow strip of woodland, a parallel strip of shingle and saltmarsh and a substantial area of mudflats. At low tide the mudflats are exposed attracting wading birds and wildfowl: curlew, oystercatchers and dunlin can be seen throughout the year.