Coordinates: 53°41′00″N 0°27′00″W / 53.6833°N 0.4500°W / 53.6833; -0.4500

Barton-upon-Humber or Barton is a town and civil parish in North Lincolnshire, England located on the south bank of the Humber Estuary, and at the end of the Humber Bridge. It lies 46 miles (74 km) east of Leeds, 6 miles (10 km) southwest of Hull and 31 miles (50 km) north northeast of the county town of Lincoln. The town was formerly an important centre for the manufacture of bicycles, Hopper's Cycles being established in the town in 1880 in the Hopper Building. Other nearby towns include Scunthorpe to the southwest and Grimsby to the southeast. The civil parish of Barton-Upon-Humber includes the hamlet of Beaumontcote which lies about 2 miles (3.2 km) to the south of the town.

The town is the northern terminus at Barton station of a branch line (Barton – Cleethorpes), opened in 1849, from Grimsby and Cleethorpes. Services are provided by Northern Rail. The A15 passes to the west of the town cutting through the Beacon Hill, and has a junction with the A1077 Ferriby Road. The B1218 passes north-south through the town, and leads to Barton Waterside eventually. Kimberly-Clark have a factory on Falkland Way close to the railway, which is known to them as their Barton Plant. This area is known as the Humber Bridge Industrial Estate.

The Humber ( /ˈhʌmbər/) is a large tidal estuary on the east coast of Northern England. It is formed at Trent Falls, Faxfleet, by the confluence of the tidal River Ouse and the tidal River Trent. From here to the North Sea, it forms part of the boundary between the East Riding of Yorkshire on the north bank and North Lincolnshire and North East Lincolnshire on the south bank. Although the Humber is an estuary from the point at which it is formed, many maps show it as the River Humber.

Below Trent Falls, the Humber passes the junction with the Market Weighton Canal on the north shore, the confluence of the River Ancholme on the south shore; between North Ferriby and South Ferriby and under the Humber Bridge; between Barton-upon-Humber on the south bank and Kingston upon Hull on the North bank (where the River Hull joins), then meets the North Sea between Cleethorpes on the Lincolnshire side and the long and thin (but rapidly changing) headland of Spurn Head to the North.

Ports on the Humber include Kingston upon Hull (better known as simply Hull), Grimsby, Immingham, New Holland and Killingholme. The estuary is navigable here for the largest of deep-sea vessels. Inland connections for smaller craft are extensive but currently only handle one quarter of the goods traffic handled in the Thames.