Wallsend Cove is a cove, located on the Isle of Portland, Dorset, England; part of the Jurassic Coast. It is found on the west side of Portland, further south from Mutton Cove, and situated between Southwell Business Park and Portland Bill.^[1] The cliff tops above the cove are part of the South West Coast Path.

The cove's cliffs are often used by rock climbers,^[2] and are known to be some of the biggest and best on Portland for climbing.^[3] Although the surrounding area of the cove features empty landscape, the limestone habitat is internationally important as it is home to many rare plants and insects.^[4]