Warrington is a large town, borough and unitary authority area in Cheshire, England. It stands on the banks of the River Mersey, which is tidal to the west of the weir. The population of the borough of Warrington, including its 18 civil parishes, is around 194,000. Its population has more than doubled since its designation as a New Town in 1968.

Historically a part of Lancashire, Warrington was founded by the Romans at an important crossing place on the River Mersey. A new settlement was established by the Saxons and by the Middle Ages, Warrington had emerged as a market town at an important bridging point. A local tradition of textile and tool production dates from this time.

The expansion and urbanisation of Warrington largely coincided with the Industrial Revolution, particularly after the Mersey was made navigable in the 18th century and the Manchester Ship Canal opened in 1894. The West Coast Mainline runs through the town (north to south) and the Manchester Ship Canal cuts through the south of the borough (east to west). The M6, M56 and M62 motorways form a partial box around the town.

People born (or living) in Warrington are known as Warringtonians[1]. The modern Borough of Warrington was formed in 1974 with the amalgamation of the former County Borough of Warrington, part of the Golborne Urban District, the Lymm Urban District, part of the Runcorn Rural District, the Warrington Rural District and part of the Whiston Rural District.