| Acronym | Definition |
|---|
| ELO | Electric Light Orchestra (band) |
| ELO | Early Learning Opportunities (Florida) |
| ELO | Epitaxial Lateral Overgrowth |
| ELO | Extended Learning Opportunity |
| ELO | Enabling Learning Objective |
| ELO | East Lothian Orienteers (orienteering club; Edinburgh, Scotland, UK) |
| ELO | Essential Learning Outcomes |
| ELO | Epoxidized Linseed Oil |
| ELO | Environmental Liaison Officer |
| ELO | Emisora Libre de Orcasitas (Madrid, Spain radio station) |
| ELO | Extra Large Orifice (fire sprinklers) |
| ELO | Eric Loizeau Organisations (French event company) |
| ELO | Extremely Low Observable |
| ELO | Enemy Lock On! (military flight simulation magazine) |
| ELO | Emerging Leaders Ocala (Florida, USA) |
| ELO | Edge Localized Orbital |
| ELO | Engineering Liaison Office |
| ELO | Establishment Liaison Officer |
| ELO | Electric Start-Long Shaft-Oil Injected (boat motors) |
| ELO | Engineering Logistics Office |