Cape Cornwall (Cornish: "Pen Kernow") is a small headland in Cornwall, UK. It is four miles north of Land's End near the town of St Just.
Cape Cornwall is the point at which Atlantic currents split, either going south up the English Channel, or north into the Bristol Channel and Irish Sea.
The Brisons, two offshore rocks, are located approximately one mile southwest of Cape Cornwall and mark the start of the annual swim to Priest's Cove.
Cape Cornwall was once thought to be the most south-westerly point in mainland England, however following accurate surveying Land's End was found to be the most westerly point.
Most of the headland is owned by the National Trust. There is also a National Coastwatch look out on the seaward side. Some have criticized the National Trust’s objections to various proposed developments near to Cape Cornwall to provide some form of tourist infrastructure. The only tourist infrastructure at present is a car park (owned by the National Trust) and a public toilet and refreshments van during the summer.
Just one mile from the Cape is the most western school on the British mainland, Cape Cornwall School. This is Cornwall's smallest secondary school with (January 2008) about 450 young people aged 11 to 16. Usually known as "Cape" it is Cornwall's only school that specialises in art, photography and music. Most of its pupils come from the tiny town of St. Just and the nearby villages of Pendeen, Sennen, St. Buryan and St. Levan but over 10% travel to the school from Penzance and further east.
Cape Cornwall is one of only two places prefixed with the name "Cape" in Great Britain, the other being Cape Wrath in Scotland.