Ar
- Ara Lake
- Arabian Lake
- Arborfield
- Arborg
- Arcasta Lake
- Archaean Shield
- Archer Fiord
- Archer Peninsula
- Archibalb Promentory
- Archibald Bay
- Archibald Island
- Archibald Lake
- Archibald Promontory
- Archie Islet
- Archipel d' Hochelaga
- Archipel des Sept Iles
- Archive
- Arcola
- Arcola
- Arctic Archipelago
- Arctic Bay
- Arctic Bay
- Arctic Harbour
- Arctic Hare
- Arctic Island
- Arctic Red River
- Arctic Red River
- Arctic Sound
- Arctic Sound
| - Ardbeg
- Ardent Lake
- Ardmore
- Ardrossan
- Arelee
- Arena
- Argenta
- Argenteuil
- Argenteuil County
- Argentia
- Argentia Harbour
- Argo Island
- Argoovartoo
- Arguyartu Point
- Argyle
- Arichat
- Arichat Harbour
- Aristazabal Island
- Aristazable
- Arjay Lake
- Ark-e-leenik
- Arkell
- Arkell
- Arlagnuk Point
- Arm Lake
- Arm River
- Armadale
- Armagh
- Armark Lake
| - Armark River
- Armatage Lake
- Armi Lake
- Armistice Lake
- Armit
- Armit Lake
- Armit Lake
- Armit River
- Armitt
- Armley
- Armour Lake
- Armstrong
- Armstrong
- Armstrong Creek
- Armstrong Lake
- Armstrong Station
- Arnica Range
- Arnold Lake
- Arnot
- Arnprior
- Arntfield
- Aroland
- Aroostook
- Aroostook Junction
- Aroostook River
- Arostook
- Arran Mountain
- Arrandale
- Arrow Lake
| - Arrow Lake
- Arrow Lakes
- Arrow River
- Arrow River
- Arrow River
- Arrowhead
- Arrowhead
- Arrowhead Lake
- Arrowhead Pass
- Arrowhead River
- Arrowsmith Bay
- Arsenault Lake
- Arsenault River
- Arseno Lake
- Art Lewis Glacier
- Artemesia Township
- Arthabaska
- Arthabaska
- Arthabaska County
- Arthur
- Arthur Fiord
- Arthur Laing Peninsula
- Artic Islands
- Artillery Lake
- Arvarlik Island
- Arvarlik Islands
- Arviat
- Arvida
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