Kelmarsh is a village and civil parish in West Northamptonshire, England.

[1][2] The population (including Haselbech) of the civil parish at the 2011 Census was 208.

[3] The village is on the A508, close to its junction with the A14 about 5 miles (8 km) south of Market Harborough and 11 miles (18 km) north of Northampton.

The place-name is identical to Chelmarsh, Shropshire; the initial K- reflects Old Norse influence.

Between 1859 and 1960 the village was served by Kelmarsh railway station about 2 miles (3.2 km) north-east of the village running trains south to Northampton and north to Market Harborough.