Stainton by Langworth is a hamlet and civil parish in the West Lindsey district of Lincolnshire, England. It is situated less than 1 mi north-west from the A158 road, 7 mi north-east from Lincoln and 13 mi north-west from Horncastle. There is a war memorial in the parish church of St John the Baptist, a Grade II listed building constructed in 1795. An 1885 restoration incorporates earlier 14th-century material, including a font.