Beachy Head West Marine Conservation Zone are two spatially separate areas in the English Channel, off the East Sussex coast. They stretch from Brighton Marina in the city of Brighton and Hove to Beachy Head near Eastbourne, with a gap at the mouth of the River Ouse near Newhaven. It covers an area of around 24 square kilometres (9.3 sq mi).^[1]

This article relies largely or entirely on a single source. (December 2018)

This area includes the Heritage Coast within the South Downs National Park, the eastern half of the UNESCO Brighton and Lewes Downs Biosphere Reserve and part of the Seven Sisters Voluntary Marine Conservation Area.

The two sites contains some of the best examples of underwater chalk habitat in the south-east of England. The chalk reefs and gullies support specialised communities of animals and seaweeds including the rare short-snouted seahorse.^[1]

• Geography of Sussex
• Beachy Head
• Kingmere
• Pagham Harbour
• The Mixon