promontory on the North Sea in the Scottish Borders council area, historic county of Berwickshire, southeastern Scotland. It is located about 12 miles (19 km) northwest of Berwick-upon-Tweed, Northumberland, England. St. Abb's is a sheer headland with cliffs some 300 feet (90 metres) high. It is a national nature reserve administered by the National Trust for Scotland and the Scottish Wildlife Trust and serves as a reserve for nesting and migrating seabirds.

St. Abb's Head was the site of a 7th-century convent founded by Ebba, a Northumbrian princess who escaped shipwreck there. The convent was burned by Norsemen in the 9th century. About 1098 King Edgar established a priory in the village of St. Abb's; its remains still stand. With neighbouring Coldingham and West Loch, St. Abb's, now a fishing village, forms part of a summer resort area.