Lechlade (/ˈlɛtʃleɪd/) is a town at the edge of the Cotswolds in Gloucestershire, England, 55 miles (89 km) south of Birmingham and 68 miles (109 km) west of London. It is the highest point at which the River Thames is navigable, although there is a right of navigation that continues south-west into Cricklade, in the neighbouring county of Wiltshire. The town is named after the River Leach that joins the Thames near the Trout Inn and St. John's Bridge.
The low-lying land is alluvium, Oxford Clay and river gravels and the town is surrounded by lakes created from disused gravel extraction sites, forming parts of the Cotswold Water Park; several have now been designated as Sites of Special Scientific Interest and nature reserves. Human occupation dates from the Neolithic, Iron Age and Roman periods and it developed as a trading centre served by river, canal, roads and railway, although the station closed in 1962.