Places beginning with BA in Ohio, United States
- Babbtown (historical)
- Bachman
- Bacon
- Bacon Flat
- Baddow Pass (historical)
- Badgertown
- Bailey
- Bailey Lake
- Baileys Mills
- Bainbridge
- Bainbridge
- Bainbridge, Township of
- Bairdstown
- Baker
- Bakersville
- Bald Knob
- Bald Knobs
- Baldwin
- Baldwin (historical)
- Balentine Acres (subdivision)
- Ballou
- Ball Subdivision
- Ballville
- Ballville, Township of
- Baltic
- Baltimore
- Bangorville
- Bangs
- Banker Heights
- Banner
- Bannock
- Bannon
- Bantam
- Barberton
- Barberton, City of
- Barclay
- Bardwell
- Barlow
- Barlow, Township of
- Barnesburg
- Barnes Corners
- Barnes Corners (historical)
- Barnesville
- Barnhill
- Barretts Mills
- Barrick
- Barrick Corners
- Barrs Mills
- Barrsville
- Bartles
- Bartlett
- Bartlow, Township of
- Barton
- Barton Manor (subdivision)
- Bartramville
- Barwyn Acres
- Bascom
- Bashan
- Bassett (historical)
- Bass Landing
- Batavia
- Batavia, Township of
- Batemantown
- Bates
- Bates Corners
- Batesville
- Bath
- Bath Center
- Bath, Township of
- Bath, Township of
- Bath, Township of
- Batson
- Battlesburg
- Baughman, Township of
- Bayard
- Bayer Trailer Court
- Bay (historical)
- Bays
- Bayshore
- Bay, Township of
- Bay View
- Bay View
- Bay Village
- Bay Village, City of
- Bazetta, Township of