List of Sites of Special Scientific Interest in Essex

This is a list of the Sites of Special Scientific Interest (SSSIs) in Essex. For other counties, see List of SSSIs by Area of Search.

* Abberton Reservoir
* Ardleigh Gravel Pit
* Ashdon Meadows
* Basildon Meadows
* Belcher's & Broadfield Woods
* Benfleet And Southend Marshes
* Blackwater Estuary
* Blake's Wood & Lingwood Common
* Bovingdon Hall Woods
* Bullock Wood
* Canvey Wick
* Cattawade Marshes
* Chalkney Wood
* Clacton Cliffs & Foreshore
* Colne Estuary
* Cornmill Stream And Old River Lea
* Crouch And Roach Estuaries
* Curtismill Green
* Danbury Common
* Debden Water
* Dengie
* Elsenham Woods
* Epping Forest
* Foulness
* Garnetts Wood / Barnston Lays
* Garrold's Meadow
* Glemsford Pits
* Globe Pit
* Goldsands Road Pit
* Grays Thurrock Chalk Pit
* Great Wood & Dodd's Grove
* Hainault Forest
* Hales And Shadwell Woods
* Hall's Quarry
* Hamford Water
* Hangman's Wood & Deneholes
* Hanningfield Reservoir
* Harlow Woods
* Harwich Foreshore
* Hatfield Forest
* High Wood, Dunmow
* Hockley Woods
* Holehaven Creek
* Holland Haven Marshes
* Holland-on-sea Cliff
* Hunsdon Mead
* Inner Thames Marshes
* Lion Pit
* Little Hallingbury Marsh
* Little Oakley Channel Deposit
* Lofts Farm Pit
* Loughton Brook
* Maldon Cutting
* Marks Tey Brickpit
* Mill Meadows, Billericay
* Mucking Flats And Marshes
* Newney Green Pit
* Norsey Wood
* Nunn Wood
* Pitsea Marsh
* Purfleet Chalk Pits
* Purfleet Road, Aveley
* Quendon Wood
* Riddles Wood
* River Ter
* Roding Valley Meadows
* Roman River
* Sandbeach Meadows
* St. Osyth Pit
* Stour And Copperas Woods, Ramsey
* Stour Estuary
* The Cliff, Burnham-on-crouch
* The Coppice, Kelvedon Hatch
* The Naze
* Thorndon Park
* Thrift Wood, Woodham Ferrers
* Thundersley Great Common
* Tiptree Heath
* Turnford and Cheshunt Pits
* Upper Colne Marshes
* Vange & Fobbing Marshes
* Waltham Abbey
* Weeleyhall Wood
* West Thurrock Lagoon & Marshes
* West Wood, Little Sampford
* Wivenhoe Gravel Pit
* Woodham Walter Common