Earith is a village in the Fens of Huntingdonshire, England, south of Chatteris and east of Huntingdon. At Earith, two tributaries of the River Great Ouse leave the river to follow their course to Denver Sluice near Downham Market where they rejoin the Great Ouse.

Nearby is Bury Fen where in 1826 a Roman bronze statue was found. It is now in the British Museum.

In 1947, there was the "Battle of Earith Gap". Melting snow had built up in the Fenland waterways, unable to be released into the sea because of high tides. On March 17 a 50 yard gap was torn in the river bank, and water poured out to flood the Fen farms for 5 days. Eventually the breach was blocked with amphibious vehicles while more orthodox repair work was carried out.[1] (http://www.suttononline.org/suthisflo.htm)