Cities and Communities in Southern Ontario
(check also Northern Ontario)
| Baddow | Beaverton | Blind River | Brigden |
| Baden | Becher | Bloomfield | Bright |
| Badgers Corners | Beeton | Bloomingdale | Brighton |
| Badjeros | Bekanon | Blossom Park | Brights Grove |
| Bailieboro | Belfountain | Blue Mountain | Brightside |
| Bainsville | Belgrave | Blue Point | Brinston |
| Bala | Bell Ewart | Bluevale | Brisbane |
| Balaclava (Grey) | Belle River | Bluewater Beach | Britainville |
| Balaclava (Renfrew) | Belleville | Blyth | Britt |
| Balderson | Bellrock | Blytheswood | Britton |
| Baldwin | Belmont | Bobcaygeon | Brockville |
| Ballantrae | Belmore | Bognor | Brodhagen |
| Ballinafad | Belwood | Bolingbroke | Bronte |
| Ballymote | Benmiller | Bolsover | Brooke |
| Balm Beach | Bent River | Bolton | Brooklin |
| Balmoral | Berkeley | Bon Secours Beach | Brooks Mill |
| Balmy Beach | Bervie | Bonarlaw | Brookville |
| Balsam Creek | Berwick | Bond Head (Durham) | Brougham |
| Baltimore | Bethany | Bond Head (Simcoe) | Brouseville |
| Bamberg | Bewdley | Bonfield | Brown Hill |
| Bancroft | Big Bay | Bonnechere | Brownsville |
| Banner | Big Bay Point | Bonnie Doone | Brucedale |
| Bannockburn | Big Cedar | Bonville | Brucefield |
| Baptiste | Big Chute | Bornholm | Brudenell |
| Barclay | Bigwood | Boston | Brunner |
| Barkway | Binbrook | Bothwell | Brussels |
| Barrie | Birch Island | Bothwell's Corners | Bryanston |
| Barriefield | Birch Point | Boulter | Buckhorn |
| Barrow Bay | Birds Creek | Bourget | Buller |
| Barrys Bay | Birr | Bowers Beach | Bummers Roost |
| Barryvale | Bishops Mills | Bowmanville | Burford |
| Batawa | Bishopsgate | Boyle | Burgessville |
| Bath | Bismarck | Bracebridge | Burgoyne |
| Battersea | Bisset Creek | Bradford | Burk's Falls |
| Baxter | Black Bank | Bradford West Gwillimbury | Burketon |
| Bayfield | Black Bay | Braeside | Burleigh Falls |
| Bayfield Inlet | Black Creek | Bramalea | Burlington |
| Bayham | Blackburn | Brampton | Burnaby |
| Bayshore Village | Blackheath | Branchton | Burnstown |
| Bayside | Blacks Corners | Brant-on-the-Grand | Burnt Island |
| Baysville | Blackstock | Brantford | Burnt River |
| Beach O'Pines | Blackstone Lake | Brechin | Burritts Rapids |
| Beachburg | Blackwater | Brent | Burtch |
| Beachville | Blair | Brentwood | Burwash |
| Bealton | Blairton | Breslau | Buttonville |
| Beamsville | Blakeney | Brickley | Buzwah |
| Bear Lake | Blanchard's Landing | Bridgenorth | Byng |
| Beatrice | Blenheim | Bridgeport | Byng Inlet |