| M | - | Magic Cruise Line |
| Majesty Cruise Line | - | - |
| Mardi Gras Queen | Florida | - |
| Maxamillion | Florida | - |
| Mayfair Maritiem | - | - |
| Midnight Gambler | Florida | - |
| Midnight Gambler II | Florida | - |
| Casino Miami | Miami, FL | - |
| Monte Carlo | Pompano Beach, FL | - |
| Mr Lucky | Marathon, FL | - |