Places beginning with PI in Ohio, United States
- Piccola (historical)
- Pickaway County
- Pickaway, Township of
- Pickerington
- Pickrelltown
- Piedmont
- Pierce (historical)
- Pierce, Township of
- Pierpont
- Pierpont, Township of
- Pigeon Creek
- Pigeon Run
- Pigeye
- Pigtown
- Pike County
- Piketon
- Pike, Township of
- Pike, Township of
- Pike, Township of
- Pike, Township of
- Pike, Township of
- Pike, Township of
- Pike, Township of
- Pike, Township of
- Pikeville
- Pincher (historical)
- Pinchtown (historical)
- Pinecrest Estates
- Pine Gap
- Pinegrove
- Pine Grove
- Pine Grove
- Pine Grove Heights
- Pine Grove (historical)
- Pine Hill
- Pine Hill
- Pinehurst
- Pine Lake Estates
- Pine Ridge Trailer Park (subdivision)
- Pines Cottage Area
- Pines Cottage Area
- Pine Valley
- Piney Fork
- Piney View
- Pinhook
- Pinhook
- Pinhook
- Pink
- Pinkerman
- Pinn (historical)
- Pioneer
- Pipesville
- Piqua
- Pisgah
- Pitchin
- Pitsburg
- Pittsburgh Junction
- Pittsfield
- Pittsfield, Township of
- Pitt, Township of