| Acronym | Definition |
|---|
| ALCO | American Locomotive Company |
| ALCO | Alameda County (Bay Area, CA) |
| ALCO | Asset/Liability Management Committee |
| ALCO | Asociacion de Lucha Contra la Obesidad (Argentina) |
| ALCO | Aussie Liquor Consumers Organization (gaming team) |
| ALCO | AmericaLinx Company (Las Vegas, Nevada) |
| ALCO | Aviation Logistics Computer Operator (Course) |
| ALCO | Airlift Coordinating Office(r) |
| ALCO | Aircraft Launch Control Officer |
| ALCO | Allegany County High School (now Allegany High School; Cumberland, MD) |
