Peacehaven is a town and civil parish in the Lewes district of East Sussex, England. It is located above the chalk cliffs of the South Downs approximately six miles (9.7 km) east of Brighton city centre, on the A259 road. Its site coincides with the point where the Greenwich meridian crosses the English south coast. Peacehaven is next to Telscombe Cliffs, a later western extension to Peacehaven, which lies within a separate parish and has a separate town council.

Lewes is a local government district in East Sussex, England. The district is named after the town of Lewes. The largest town is Seaford. The district also includes the towns of Newhaven, Peacehaven and Telscombe and numerous villages and surrounding rural areas. The Council is based at Marine Workshops a former industrial building in Newhaven which it shares with East Sussex Colleges Group.