Regions of Sierra Leone
- Sundodu
- Somoya
- Sumbuya
- Sumbuya
- Sumbuya
- Sumbuya
- Sumbuya
- Sumbuya
- Sumbuya
- Sumbuya
- Sumbidu
- Sumbidu
- Sumbeyi
- Sumbedu
- Simbaru
- Sumbaru
- Sumbaria
- Sumbara
- Yima
- Sumbaidu
- Sumbaidu
- Sumbadu
- Sumaworia
- Sumata
- Sumanferikia
- Sumana
- Sulimania
- Suma
- Sulima
- Sulima
- Sulima
- Sulehun
- Sukuma Town
- Sukudu
- Sukudu
- Sukudu
- Sukudu
- Sukudu
- Sukebu
- Suinya
- Suinkonkoma
- Sugeta
- Sugbale
- Sugar Loaf
- Sufidu
- Sufidu
- Subu
- Suagolu
- Spike Hill
- Sahn
- Soya
- Soya
- Sowlia
- Sowama
- Siwaia
- Southern Province
- Soru
- Soronkuri
- Sorongbay
- Sorekoro
- Sonkonia
- Sonigiema
- Songo
- Songo
- Songa
- Sonfondu
- Lake Sonfon
- Sumtoke
- Sondodu
- Somway
- Somu
- Somtabaka
- Somafema
- Soma
- Solon
- Soliye
- Solindo
- Soli
- Solema
- Sola
- Sokurila
- Sokurela
- Sokurela
- Sokurela
- Sokurela
- Sokurela
- Sokurela
- Sokoyo
- Sokoria
- Sokoma
- Soia
- Soho
- Mendama
- Sogoma
- Sogboro
- Sagbone
- Sogbehun
- Sondokorobendu
- Sobo
- Suawo
- Skola-In
- Siwal
- Sitafaia
- Sisawema
- Sirekude
- Siraninkoro
- Siraia
- Sirabu
- Sipaye
- Sipahun
- Sioma
- Sint
- Sino
- Sinkuya
- Sinkunia
- Sinkimbadu
- Sinjo
- Sinjo
- Simiyei
- Sini
- Singema
- Sengema
- Singeko
- Singbinja
- Singbinia
- Singbele
- Sinekoro
- Sinegal
- Sindugu
- Sindugu
- Sindeya
- Sindadu
- Simria
- Simi
- Simbriyan
- Simbili
- Simbaru
- Simbaria
- Simbakoro
- Simbaia
- Simbabu
- Simba
- Simabu
- Simabu
- Simabu
- Silema
- Sile
- Sikonko
- Sikindidu
- Sikidia
- Sihun
- Sigiye
- Sigi
- Sifa
- Sierra Leone River
- Sierra Leone Peninsula
- Republic of Sierra Leone
- Cape Sierra Leone
- Siena
- Sidu
- Sibeli
- Siamandu
- Siamamaia
- Siama
- Siama
- Siabu
- Shuen
- Shorema
- Shimbekihun
- Shimbek
- Cape Shilling
- Sherbro Town
- Sherbro Strait
- Sherbro River
- Sherbro Island
- Shengeputu
- Shenge Point
- Shenge Island
- Shenge
- Shenge
- Shengboma
- Sheakaia
- Sheakaia
- Sheakaia
- Sheakaia
- Shawmoi
- Manduworo
- Shangaima
- Seya
- Sewaoma
- Siwaia
- Siwaia
- Sewa
- Setnyin
- Setema
- Seria
- Seremodu
- Serekolia
- Seredugu
- Sereadu