Regions of United Kingdom
- Southam
- Southall
- South Acre
- Souter Point
- Souter Head
- Soutergate
- Sourton
- Sour Skerry
- Sourlies
- Sound Gruney
- Voe of Sound
- Ness of Sound
- Ness of Sound
- Soulseat Loch
- Souldrop
- Souldern
- Soulby
- Soulbury
- Sotwell
- Sotterley
- Sotherton
- Sotby
- Soroba House
- Sorne Point
- River Sorn
- Sorn
- Sorisdale
- Cruach an t-Sorchain
- Sorbie
- Soray
- Sopworth
- Sopley
- Sookholme
- Sonning
- Loch Sonachan
- Sompting
- West Somerton
- Somerton
- Somerton
- Somersham
- Somersham
- Plain of Somerset
- Somerset
- Somerset
- Somersby
- Somersal Herbert
- Somerleyton
- Somerford Keynes
- Somerford Hall
- Somerby
- Somerby
- Solway Plain
- Solway Moss
- Solway Firth
- Solva
- Sollom
- Sollas
- Solihull
- Sole Street
- Sole Pit
- The Solent
- Sole Burn
- Soldian Rock
- Solan Bank
- Soke of Peterborough
- Soham
- Socach Burn
- Soberton
- Soay Sound
- Soay Mór
- Soay
- Soay
- River Soar
- Soa Island
- Soa Island
- Soa Island
- Snowshill
- Snowdonia
- Snowdon - Yr Wyddfa
- Snook Point
- Snodland
- Loch Snizort Beag
- River Snizort
- Loch Snizort
- Snitterfield
- Snitterby
- Snitter
- Sneuk Head
- Sneuk
- Snettisham
- Snetterton Heath
- Snetterton
- Snelston
- Snelland
- Sneinton
- The Sneckan
- Sneaton
- Snead
- Snave
- Snar Water
- Voe of Snarraness
- Snarra Ness
- Snargate
- Snarestone
- Snaresbrook
- Snape
- The Snap
- Snap
- Snaith
- Snainton
- Snailwell
- Snab Point
- Smithy Bridge
- Smiths Knoll
- Smith Bank
- Smisby
- Smethwick
- Beinn Smeorail
- Smeeth
- Smeaton Pass
- Smeafield
- Smarden
- Smardale
- The Smalls
- The Small Isles
- Small Isles
- Small Heath
- Smallford Station
- Smalley
- Smallburgh
- Smailholm
- Sma’ Glen
- Loch Sloy
- Slough-na-more
- Slough
- Slough
- Loch Slochy
- Slochd Maol Doiridh
- Slitrig Water
- Slioch
- Slioch
- Slingsby
- Slinfold
- Slindon
- Slindon
- Slimbridge
- Sligga Skerry
- Loch Sligachan
- Glen Sligachan
- Slievenanee
- Slievemore
- Slievemore
- Slievemartin
- Slieveanorra
- Sliddery Water
- Sliddery
- Slickly
- Loch Sletill
- Glen Sletdale
- Slemish Mountain
- Sleights
- Sleightholme
- Sledway
- Sledway
- Sledmere
- Sound of Sleat
- Point of Sleat
- Sleaford
- Sleach Water
- Slawston
- Slaughterford
- Slaugham
- Slateford
- Slapton Sands
- Slapton
- Slapton
- Slapton
- Loch Slapin
- Slamannan
- Slaley
- Slaithwaite
- Slains Castle
- Loch Slaim
- Slaidburn
- Slaggyford
- Slaggan
- Slade Green
- Skyre Burn
- Skye of Curr
- Island of Skye
- Skullmartin
- Skullomie Harbour
- Skullomie
- Stack of Skudiburgh
- Skudiburgh
- Skuda Sound
- Skomer Island
- Skokholm Island
- Skitter Ness
- Skirwith