The Limehouse Link tunnel is a 1.1-mile (1.8 km) long tunnel under Limehouse in East London on the A1203 road. The tunnel links the eastern end of The Highway to Canary Wharf in London Docklands. Built between 1989 and 1993 at a cost of £293,000,000 it has been calculated as the most expensive road scheme in Britain per mile, working out at £50,500 per foot at 2011 prices. It is the second largest non-estuarial road tunnel in the UK, after the Hindhead Tunnel in Surrey.

Limehouse is a district in the London Borough of Tower Hamlets in East London. It is 3.9 miles (6.3 km) east of Charing Cross, on the northern bank of the River Thames. Its proximity to the river has given it a strong maritime character, which it retains through its riverside public houses and steps, such as The Grapes and Limehouse Stairs. It is part of the traditional county of Middlesex. It became part of the ceremonial County of London following the passing of the Local Government Act 1888, and then part of Greater London in 1965.