Polesden Lacey is an Edwardian house and estate, located on the North Downs at Great Bookham, near Dorking, Surrey, England. It is owned and run by the National Trust and is one of the Trust's most popular properties.

This Regency house was expanded from an earlier building, and extensively remodelled in 1906 by Margaret Greville, a well-known Edwardian hostess. Her collection of fine paintings, furniture, porcelain and silver is displayed in the reception rooms and galleries, as it was at the time of her celebrated house parties. The future George VI and Queen Elizabeth spent part of their honeymoon there in 1923.

The 1,400-acre (570 ha) estate includes a walled rose garden, lawns, ancient woodland and landscape walks.