Somerby (also known as Somerby juxta Bigby or Somerby by Brigg) is a hamlet and civil parish in the West Lindsey district of Lincolnshire, England. It is situated approximately 4 miles (6 km) east from the town of Brigg and in the ecclesiastical parish of Somerby. Somerby lies in the Lincolnshire Wolds, a designated Area of Outstanding Natural Beauty, between the villages of Bigby and Searby.