Earith is a village and civil parish in Cambridgeshire, England. Lying approximately 10 miles (16 km) east of Huntingdon, Earith is situated within Huntingdonshire which is a non-metropolitan district of Cambridgeshire as well as being a historic county of England. At Earith, two artificial diversion channels of the River Great Ouse, the Old Bedford River and the New Bedford River, leave the river on a course to Denver Sluice near Downham Market, where they rejoin the Great Ouse in its tidal part. At the 2001 census, the parish had a population of 1,677, reducing to 1,606 at the 2011 Census.