Cumberland Terrace is a neoclassical terrace on the eastern side of Regent's Park in the London Borough of Camden, completed in 1826. It was one of several terraces and crescents around Regent's Park designed by the British architect John Nash (1752–1835), under the patronage of the Prince Regent (later George IV). The terrace was to stand opposite the Prince's proposed palace in the park and was therefore of particular importance in the scheme. It was named after the King's younger brother, the Duke of Cumberland.