Places beginning with LO in Ohio, United States
- Lobaugh
- Lock
- Lock
- Lockbourne
- Lockbridge (historical)
- Lockdale
- Lockhart
- Lockington
- Lockland
- Lockland, City of
- Lock Port
- Lock Seventeen
- Lock Two
- Lockville
- Lockville Station
- Lockwood
- Lockwood Corners
- Locust Corner
- Locust Fork
- Locustgrove
- Locust Grove
- Locust Grove
- Locust Grove
- Locust Lake
- Locust Point
- Locust Ridge
- Lodi
- Lodi
- Lodi, Township of
- Logan
- Logan
- Logan County
- Logan Elm Village
- Logan (historical)
- Logansville
- Logan, Township of
- Loghaven
- Logtown
- Logtown
- Logtown
- Lombardsville
- Lombardy Heights (subdivision)
- Lombardy Heights (subdivision)
- London
- London
- London, City of
- Londonderry
- Londonderry
- Londonderry, Township of
- Long
- Long Beach
- Long Bottom
- Longley
- Long Run
- Long Run (historical)
- Longs Crossing
- Longstreth
- Longview Heights
- Longville (historical)
- Longvue (subdivision)
- Loomis
- Lorain
- Lorain, City of
- Lorain County
- Loramie, Township of
- Lordstown
- Lordstown, Village of
- Lore City
- Losantville Triangle
- Lostcreek, Township of
- Lost Run (historical)
- Lottridge
- Louden
- Loudon
- Loudon, Township of
- Loudon, Township of
- Loudonville
- Louisville
- Louisville
- Louisville, City of
- Loveland
- Loveland, City of
- Loveland Park
- Lovell
- Lovell
- Lowell
- Lowell
- Lowellville
- Lower Dresden
- Lower Newport
- Lower Price Hill (subdivision)
- Lower Salem
- Low Gap
- Loys Corners