F
- Fairburn Ings – Leeds
- Fairmile Bottom
- Fant
- Far Ings – North Lincolnshire
- Farley Copse
- Farlington Marshes
- Farndale
- Farndon Ponds
- Farningham Wood
- Farnley Hall Fishpond – Leeds
- Farthinghoe
- Felmingham Cutting
- Felton Common
- Fen Alder Carr
- Fenlake Meadows
- Fenn Washland
- Fens Pool – Dudley
- Ferndown – Stafford
- Ferneydale Grassland – High Peak, Derbyshire
- Ferryhill Carrs – Sedgefield, Co Durham
- Fibbersley – Walsall
- Filsham Reed Beds
- Fire Beacon Hill
- Firsby Reservoir
- Firthmoor Grasslands & Ponds (Formerly K/A Maidendale Fishing and Nature Reserve)
- Fisher's Field
- Fishpond Wood and Beverley Meads
- Fishwick Bottoms – Preston
- Flamborough Outer Headland – East Riding of Yorkshire
- Flatts Lane Woodland Country Park – Redcar and Cleveland
- Fleet Pond
- Flitton Moor
- Flitwick Wood, Flitwick
- Foal Hurst Wood
- Folkestone Warren
- Folly Farm, Somerset
- Foots Cray Meadows
- Forbes Hole – Erewash, Derbyshire
- Forder Valley
- Forge Mill Lake
- Fox Corner
- Fox Covert – Erewash, Derbyshire
- Fox Hagg – Sheffield
- Fox Wood
- Foxburrow Wood
- Foxes Cross Bottom
- Foxglove Covert – Richmonshire, North Yorks
- Foxhill Bank – Hyndburn, Lancs
- Foxley Wood
- Frays Valley
- Freeholder's Wood & Ridding's Field – Yorkshire Dales National Park
- Fremington
- Frieze Hill Community Orchard
- Frodingham Railway Cutting – North Lincolnshire
- Fryent Country Park
- Fulwell Quarry
- Furzefield Wood & Lower Halfpenny Bottom
Read more about this topic: List Of Local Nature Reserves In England