Regions of Canada
- Sinnamoxt Glacier
- Sinnce-tah-lah Indian Reserve 2
- Sinnett
- Sinnett Creek
- Sinnett Islets
- Sinn Fein Creek
- Sinnots Brook
- Sinnott Lake
- Sinta Creek
- Sintaluta
- Sintlehahten Creek
- Sinton Creek
- Sinton Lake
- Sinton Lake
- Sinwa Creek
- Sinwa Mountain
- Siobhan River
- Siogak River
- Siokum Creek
- Siolik Lake
- Sion
- Siorak Brook
- Siorak River
- Siorarsuk Peninsula
- Sioux Crossing
- Sioux Lake
- Sioux Lake
- Sioux Lookout
- Sioux Lookout
- Sioux Lookout Point
- Sioux Mountain Wilderness Area
- Sioux Narrows
- Sioux Narrows
- Sioux Narrows-Nestor Falls
- Sioux Narrows Provincial Park
- Sioux Pass
- Sioux Pass Lake
- Sioux Pass Marsh
- Sioux Point
- Sioux Valley
- Sioux Valley Dakota Nation
- Sipanigo River
- Sipanok Channel
- Sipastik Lake
- Siphon Creek
- Sipiwesk
- Sipiwesk Lake
- Sipple Lake
- Sipujjaqtuq River
- Sipukat Bay
- Sipukat Lake
- Sipwejimu River
- Siqaivilaaq Point
- Siqquqtijjutitalik Esker
- Sir Alexander Mackenzie Park
- Sirdar
- Sirdar Creek
- Sirdar Mountain
- Sirdevan Lake
- Sir Donald Glacier
- Sir Donald Range
- Sirecho Lake
- Sir Edmund Bay
- Sir Edmund Head
- Sirenac
- Siren Creek
- Sirenia Glacier
- Sirenia Mountain
- Siren Lake
- Sirett Lake
- Sir George-Étienne Cartier National Historic Site of Canada
- Sir Graham Moore Islands
- Sir Harry Range
- Sirius Peak
- Sir James Glacier
- Sir John Barrow Monument
- Sir John Creek
- Sir John Johnson House National Historic Site of Canada
- Sir-John Lake
- Sirko
- Sir Leonard Tilley House
- Sirluck Lake
- Sirmilik National Park of Canada
- Sirmiq Inlet
- Sirmisarniavik
- Sirmisartalik
- Sirnaaqtulik Flats
- Sirois Lake
- Sirola Lake
- Sir Richard Squires Memorial Provincial Park
- Sir Sandford Glacier
- Sir Sandford Pass
- Sir Sandford Range
- Sir Wilfrid Laurier National Historic Site of Canada
- Sir William Island
- Sir William Parker Strait
- Sir William Shoal
- Sir Winston Churchill Provincial Park
- Sisco Lake
- Sisib Lake
- Sisib Lake
- Sisipuk Lake
- Sisipuk Lake
- Sisipuk Rapids
- Sisk
- Siska Creek
- Siska Flat Indian Reserve 3
- Siska Flat Indian Reserve 5A
- Siska Flat Indian Reserve 5B
- Siska Flat Indian Reserve 8
- Siskech Brook
- Siskech Lake
- Siskin Lake
- Siskin Point
- S Island
- Sisqa Peak
- Sisseney Lake
- Sissiboo Falls
- Sissiboo Grand Lake
- Sissiboo River
- Sisson Brook
- Sissons Creek
- Sisson Settlement
- Sissons Lake
- Sisterbutte Creek
- Sister Creek
- Sister Island
- Sister Island
- Sister Islands
- Sister Islands
- Sister Islands
- Sister Islands
- Sister Islands
- Sister Islands
- Sister Islands
- Sister Islets
- Sister Lake
- Sister Lakes
- Sister Lakes
- Sister Mountain
- Sister Pond
- Sister Pond
- Sister Ponds
- Sister River
- Sister Rock
- Sister Rock
- Sister Rocks
- Sister Rocks
- Sister Rocks
- Sisters
- Sisters Creek
- Sisters Creek
- Sisters Creek
- Sisters Hills
- Sisters Island
- Sisters Islands
- Sisters Islands
- Sisters Islands
- Sisters Islands
- Sisters Islands
- Sisters Islets
- Sisters Mountains
- Sisters Point
- Sisters Point
- Sisters Pond
- Sistonens Corners
- Sisul Tl'o K'Ut Indian Reserve 14
- Sisul Tl'o K'ut Indian Reserve 21
- Sisyphus Creek
- Sisyphus Glacier
- Sitch Creek
- Sitches Lake
- Sitchiada Mountain
- Sitch Island
- Sitdown Pond
- Site-Bellevue
- Site du patrimoine mondial des Parcs des montagnes Rocheuses canadiennes
- Site du patrimoine mondial des Parcs des montagnes Rocheuses canadiennes
- Site du patrimoine mondial du Lieu historique national de L'Anse aux Meadows
- Site du patrimoine mondial du Parc international de la paix Waterton-Glacier
- Site du patrimoine mondial du Parc national du Gros-Morne
- Site du patrimoine mondial du Parc national Nahanni
- Site du patrimoine mondial du Parc national Wood Buffalo
- Site du patrimoine mondial du Parc national Wood Buffalo
- Site du patrimoine mondial du Parc provincial Dinosaur
- Site du patrimoine mondial Head-Smashed-In Buffalo Jump (site historique provincial)
- Site du patrimoine mondial Kluane/Wrangell-St. Elias/Glacier Bay/Tatshenshini-Alsek
- Site du patrimoine mondial Kluane/Wrangell-St. Elias/Glacier Bay/Tatshenshini-Alsek
- Site historique au Pied-du-Courant
- Site historique de La Grave
- Site historique du Village-Minier-de-Bourlamaque
- Siteman Rock
- Siteman Rock
- Sitemans Cove
- Sitialuit
- Sitiapiit
- Sitidgi Creek
- Sitidgi Lake
- Sitiguluit
- Sitiit