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 is 10 miles (16 km) south of Gainsborough, 10 miles (16 km) west of Lincoln, and at the junction of the A57 running east to west, and the A1133 running north to south.