S
- (Fraser Valley Regional District) Silver Creek
- (Fraser Valley Regional District) Silverhill
- (Metro Vancouver Regional District) Silver Valley
- (Regional District of Alberni-Clayoquot) Similar Island
- (Central Coast Regional District) Simonds Group
- (Skeena-Queen Charlotte Regional District) Simpson Island
- (Skeena-Queen Charlotte Regional District) Sine Island
- (Regional District of Kitimat-Stikine) Sinnett Islets
- (Skeena-Queen Charlotte Regional District) Sisters Islands
- (Powell River Regional District) Sisters Islets
- (Skeena-Queen Charlotte Regional District) Sivart Island
- (Skeena-Queen Charlotte Regional District) Skaga Island
- (Sunshine Coast Regional District) Skardon Islands
- (Skeena-Queen Charlotte Regional District) Skedans
- (Skeena-Queen Charlotte Regional District) Skedans Islands
- (Skeena-Queen Charlotte Regional District) Skiakl Island
- (Skeena-Queen Charlotte Regional District) Skidegate
- (Skeena-Queen Charlotte Regional District) Skidegate Landing
- (Skeena-Queen Charlotte Regional District) Skincuttle Island
- (Skeena-Queen Charlotte Regional District) Skindaskun Island
- (Sunshine Coast Regional District) Skookum Island
- (Capital Regional District) Skull Islet
- (Skeena-Queen Charlotte Regional District) Sladden Island
- (Regional District of Mount Waddington) Slave Island
- (Powell River Regional District) Sliammon
- (Regional District of Kitimat-Stikine) Smithers Island
- (Skeena-Queen Charlotte Regional District) Smith Island
- (Northern Rockies Regional Municipality) Smith River
- (Skeena-Queen Charlotte Regional District) Smyth Island
- (Regional District of Nanaimo) Snake Island