Newton on Trent is a village and civil parish in the West Lindsey district of Lincolnshire, England. The population of the civil parish at the 2011 census was 389. The village is situated east of the River Trent, and approximately 10 miles (16 km) south from Gainsborough, 10 miles (16 km) west from the county town of Lincoln, and at the junction of the A57 running east to west, and the A1133 running north to south.

West of the village, between it and the Trent, is the site of a Roman fort. It was discovered in 1962, and probably dates from the Claudian[clarification needed] period. The area enclosed is likely to have been at least 30 acres (0.1 km2). Fortresses of this size are not sufficiently large for a whole Roman legion, but would be adequate for a half-legion. Classified as a vexillation (smaller) fortress, it is an ancient Scheduled monument.

The village is listed in the 1086 Domesday Book as "Neutone", with 100 acres (0.4 km2) of meadow.

Further information can be found on Wikipedia.