Cogglesford Mill[1] (sometimes referred to as Coggesford[2]) is a Grade II listed working watermill in Sleaford, Lincolnshire.

The ford from which the mill takes its name is where the Roman road, now called Mareham Lane, crossed the Slea.

The original crossing, no longer extant, is a few hundred yards downstream of the mill, close to the current footbridge.

There is archaeological evidence of a Saxon mill on the site and records in the Domesday book of later mills; the present redbrick structure dates to the mid to late 18th century, with alterations from the 19th century.

During the construction of the Sleaford Navigation, in the 1790s, locks were provided at each of the mills to maintain the necessary head of water.