Surrey () is a county in South East England which borders Kent to the east, East Sussex to the southeast, West Sussex to the south, Hampshire to the west, Berkshire to the northwest, and Greater London to the northeast. With about 1.2 million people, Surrey is the twelfth most populous English county, the third most populous home county, after Kent and Essex, and the third most populous in the Southeast, after Hampshire and Kent.
Surrey is a relatively wealthy county. It has the highest proportion of woodland of counties in England. It has four horse racing courses, and golf courses including the international competition venue at Wentworth.
Guildford is popularly regarded as the county town, although Surrey County Council is based extraterritorially at Kingston upon Thames. Surrey is divided into eleven districts.