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.
Fulletby is the smallest village in the East Lindsey district.