- Babb
- Bainville
- Baker
- Ballantine
- Basin
- Batavia
- Bear Dance
- Bearcreek
- Beaver Creek
- Belfry
- Belgrade
- Belknap
- Belt
- Biddle
- Big Arm
- Big Sandy
- Big Sky
- Big Sky Resort
- Big Timber
- Bigfork
- Billings Metropolitan Area
- Birney
- Birney Day School
- Black Eagle
- Blacktail Mountain Ski Area
- Boneau
- Bonner-West Riverside
- Boulder
- Box Elder
- Boyd
- Bozeman
- Brady
- Bridger
- Bridger Bowl
- Broadus
- Broadview
- Brockton
- Browning
- Busby
- Butte
- Butte-Silver Bow (Balance)
- Bynum
