Ardleigh is a village and civil parish in Essex, England. It is situated approximately 4 miles (6 km) northeast from the centre of Colchester and 26 miles (42 km) northeast from the county town of Chelmsford.
Ardleigh is in the district of Tendring. The parish had a population of 2,081 according to the 2001 census and includes the area known as Crockleford Heath.
The Great Eastern Main Line passes close to the village but the railway station closed in November 1967. The closest railway station is now at Manningtree, 3 miles (5 km) northeast. The village is on the A137 road, a route from Colchester to Ipswich, Suffolk.