MCY
| Acronym | Definition |
|---|---|
| MCY | Machine Cycle |
| MCY | Mercury General Corporation (Los Angeles, CA) |
| MCY | Million Cubic Yards (measurement) |
| MCY | Sunshine Coast, Queensland, Australia - Maroochydore (Airport Code) |
| MCY | Miami County YMCA (Young Men's Christian Association; Ohio) |
| MCY | Military Children and Youth |
| MCY | Major Clinical Year (Columbia University; New York, NY) |