Lady Robinsons Beach is the stretch of beach between the mouth of the Cooks River and the mouth of Georges River on the western shore of Botany Bay in Sydney, New South Wales, Australia. Originally known as Seven Mile Beach, it was renamed after the wife of the then Governor, Sir Hercules Robinson. Isolated settlements separated from the beach by sand dunes were also given the name of Lady Robinson's Beach as their postal address.

Botany Bay is an open oceanic embayment, located in Sydney, New South Wales, Australia, 13 km (8 mi) south of the Sydney central business district. Its source is the confluence of the Georges River at Taren Point and San Souci as well as the Cooks River at Kyeemagh, which flows 10 km (6 mi) to the east before meeting its mouth at the Tasman Sea, midpoint between the suburbs of La Perouse and Kurnell. The northern headland of the entrance to the bay from the Tasman Sea is Cape Banks and, on the southern side, the outer headland is Cape Solander and the inner headland is Sutherland Point.