Addington Hills is a park in Upper Shirley, London, England. It is managed by the London Borough of Croydon. It was part of the old parish of Addington before the suburb of Shirley was developed in the 1930s. The site consists largely of woodland on a gravel bed, with London's largest area of heathland at its heart. It is a Site of Metropolitan Importance.

It is a peaceful area with many pathways close to central Croydon. There is a viewpoint with fine views across Croydon and across to north London, including Docklands and Parliament Hill. It is served by Coombe Lane tram stop on Tramlink route 3. The park covers an area of 130 acres (53 ha).

The London Loop path runs through the park. The park is fully accessible at all times.

Addington Hills and neighbouring Croham Hurst to the west and Shirley Hills to the east form part of a chain of popular open spaces in Croydon. The seasonal changes of the colourful heather, birch, oak and pine and the variety of birds and other wildlife and the bracing situation on top of the plateau attract visitors to the area at all times of the year.

Henry George (September 2, 1839 – October 29, 1897) was an American writer, politician and political economist, who was the most influential proponent of the land value tax, also known as the "single tax" on land. He inspired the economic philosophy known as Georgism, whose main tenet is that people should own what they create, but that everything found in nature, most importantly the value of land, belongs equally to all humanity. His most famous work, Progress and Poverty (1879), is a treatise on inequality, the cyclic nature of industrial economies, and the use of the land value tax as a remedy.

George was born in Philadelphia, Pennsylvania, to a lower-middle class family, the second of ten children of Richard S. H. George and Catharine Pratt (Vallance) George. His father was a publisher of religious texts and a devout Episcopalian, and sent George to the Episcopal Academy in Philadelphia. George chafed at his religious upbringing and left the academy without graduating. His formal education ended at age 14 and he went to sea as a foremast boy at age 15 in April 1855 on the Hindoo, bound for Melbourne and Calcutta. He returned to Philadelphia after 14 months at sea to become an apprentice typesetter before settling in California. After a failed attempt at gold mining in British Columbia he began work with the newspaper industry during 1865, starting as a printer, continuing as a journalist, and ending as an editor and proprietor. He worked for several papers, including four years (1871–1875) as editor of his own newspaper San Francisco Daily Evening Post.