Fulnetby is a hamlet and civil parish in the West Lindsey district of Lincolnshire, England.

It is situated approximately 8 miles (13 km) north-east from the city and county town of Lincoln.

[1] Once larger than the present day hamlet, Fulnetby is considered a deserted medieval village with earthworks in fields east of Fulnetby Hall known as Hall Garths, however since 1953 these have been destroyed and nothing can be seen today.

[2] The deserted medieval village of Helethorpe or Halethorpe was located nearby and was documented from 1212 to 1711, of which only earthworks remain.

[4] Fulnetby Hall is a Grade II listed building dating from the 16th century with a moat on its north and western side.