Coleby is a hamlet in the civil parish of West Halton in North Lincolnshire, England.

It is situated approximately 7 miles (11 km) north from Scunthorpe, and 3 miles (5 km) south from the Humber estuary.

Coleby pre-dates the Norman Conquest, its name derived from Old Norse meaning the "farmstead of a man named Koli".

The village has allotments,[3] but no shops or public houses, and its telephone box was removed in 2008.

[4] Internet is delivered by ADSL through underground, waxed-paper insulated copper wires that were laid by the GPO in 1955.