Offley is a civil parish in the English county of Hertfordshire, between Hitchin and Luton. The main village is Great Offley, and the parish also contains the nearby hamlets of Little Offley and The Flints. In the south-west of the parish, near Luton, there are the hamlets of Cockernhoe, Mangrove Green and Tea Green, and also the Putteridge Bury estate; these have LU2 postcodes and 01582 telephone numbers.