| Acronym | Definition |
|---|
| OHL | Ontario Hockey League |
| OHL | Obrascón Huarte Lain (Spanish multinational construction firm) |
| OHL | Overhaul |
| OHL | Odyssey House Louisiana (behavioral health) |
| OHL | Ozburn-Hessey Logistics (Brentwood, TN) |
| OHL | Overhung Load (engineering) |
| OHL | Oud-Heverlee Leuven (Dutch) |
| OHL | Oberste Heeresleitung (German: Highest Command of Military; WWI) |
| OHL | Oral Hairy Leukoplakia |
| OHL | Oh How Lovely |
| OHL | OverHead Line (Mer Mec power transmission, railway equipment) |
| OHL | Old Hickory Lake (Tennessee) |
| OHL | Occupational Health Laboratory |
| OHL | Over High Limit (measuring tolerances) |
| OHL | Offiziersheimgesellschaft (German) |
| OHL | Orlando Historic Landmarks |
| OHL | Overall Height Lowered (lift trucks forklifts specification) |
| OHL | On Hand Luggage (baggage in excess in an airport without passenger) |