Fulletby is a village and a civil parish in the East Lindsey district of Lincolnshire, England. It is situated in the Lincolnshire Wolds, and 3 mi north-east from Horncastle, 9 mi south from Louth, and 8 mi north-west from Spilsby. The parish covers approximately 1950 acre . At the time of the 2011 census the population remained less than 100 and is included in the civil parish of Low Toynton.
In 2011, Fulletby had a population of 90.