Earls Colne is a village in Essex, England named after the River Colne, on which it stands, and the Earls of Oxford who held the manor of Earls Colne from before 1086 to 1703.

The River Colne is a small river that runs through Essex, England and passes through Colchester. It is not a tributary of any other river, instead having an estuary that joins the sea near Brightlingsea. The river's name is of Celtic origin, combining the word for rock "cal" with a remnant of the word "afon", or river, giving the meaning "stony river". However, another authority states that the river's name was originally Colonia Fluvius, the "waterway of the Colonia": a reference to Colchester's status in Roman times. There are two other rivers in the UK that share the same name.