| Acronym | Definition |
|---|
| OL | Ordered List (HTML) |
| OL | Overlap |
| OL | Office Lady (English term used in everyday Japanese for working unmarried young lady) |
| OL | On-Line |
| OL | Official Language |
| OL | Olympique Lyonnais (French football team) |
| OL | Overload |
| OL | Offensive Lineman (football) |
| OL | Oldham (postcode, United Kingdom) |
| OL | Off Limits |
| OL | Olympiske Leker (Norwegian: Olympic Games) |
| OL | Outside Linebacker (football) |
| OL | Online Learning (also seen as OLL) |
| OL | Objective Lens |
| OL | Outland (gaming, World of Warcraft) |
| OL | Operation Lifesaver |
| OL | Open Learning |
| OL | Offer Letter (human resources) |
| OL | Open Loop |
| OL | Ozone Layer |
| OL | Off List (subject line of offlist posts to mailing lists) |
| OL | Old Latin |
| OL | Overtime Loss (hockey; soccer) |
| OL | Orientation Leader (education) |
| OL | Outer Loop (Beltway) |
| OL | Local Official (Scott Catalogue prefix; philately) |
| OL | Organizational Level |
| OL | Operating License |
| OL | Optimum Level |
| OL | Operating Level |
| OL | Over Limit (electronics) |
| OL | Operating Location |
| OL | Overhead Line |
| OL | Operating Limit |
| OL | Oberleitung (German catenary) |
| OL | Office Leader |
| OL | Order of the Laurel (Society for Creative Anachronism) |
| OL | Operational Logistics |
| OL | Ordinary Leave |
| OL | Offensive Linebacker (football) |
| OL | Oulu railway station, Finland (standard station code) |
| OL | Orienting Line |
| OL | Oc'ulus Lae'vus (Left Eye) |
| OL | Orange Logic LLC |
| OL | Organic Silts of Low Plasticity (soil type) |
| OL | Österreichicher Lloyd |
| OL | O'Fallon Library (O'Fallon, IL) |
| OL | Outline and Load (drawings) |