Lock Island is an island in the River Thames in England connected to Shepperton Lock, near Shepperton. Facing the attached by lock-gate bridge mainland is a hedge-lined lawn hosting a café, below and above zones of free short-stay moorings. The Thames River Police have a station on the island. Shepperton Canoe Club and Weybridge Mariners' Boat Club face part of the Weybridge side. The island is connected to Hamhaugh Island by a walkway across the main weir, in turn having a closed-access weir to Hamm Court, Addlestone.
Lock Island was uninhabited until the late 19th century, when some people from London moved there due to the unhealthy environment of the city.[1] During the Blitz, a few families moved to the island and stayed there, with their descendants living in the few homes (all in the east of the island) such as Lock House.[1]
The west of the island is undisturbed wilderness, and is home to a population of European water voles.[1]
A little of the island has been a boat store, given permission in 1982.[2]