Elstree is a large village in the Hertsmere borough of Hertfordshire, England. It is about 15 miles northwest of central London on the former A5 road, that follows the course of Watling Street. In 2011, its population was 5,110. It forms part of the civil parish of Elstree and Borehamwood, originally known simply as Elstree.

Hertsmere is a local government district with borough status in Hertfordshire, England. Its council is based in Borehamwood. Other settlements in the borough include Bushey, Elstree, Radlett and Potters Bar. The borough contains several film studios, including Elstree Studios and the BBC Elstree Centre at Borehamwood. The borough borders Three Rivers, Watford, St Albans, and Welwyn Hatfield in Hertfordshire and the three north London boroughs of Harrow, Barnet and Enfield. Hertsmere is located mainly within the M25 Motorway.