- Lions Park
- Lippincott
- Lisbon
- Lisman
- Litchfield
- Lithopolis
- Little Bethlehem
- Little Bohemia
- Little Center
- Little Chicago
- Little Chippewa Estates
- Little Hocking
- Little Mountain
- Little Richmond
- Little Sandusky
- Little Walnut
- Little Walnut Isle
- Little Washington
- Little York
- Little York
- Livingston Mobile Home Park
- Lloyd
- Lloyd Corners
- Lloydsville
- Lobaugh
- Lock
- Lock
- Lock Port
- Lock Seventeen
- Lock Two