| | MGM Selvee World | Visakhapatnam, Andhra Pradesh, India | - | ≤ | - |
| | Miami Beach Amusement Park | Port Talbot, Neath Port Talbot, Wales, United Kingdom | - | ≤ | - |
| | Midland Beach Park | Staten Island, New York, United States | - | - | - |
| | Midlands Industrial Exhibition | Nottingham, Nottinghamshire, England, United Kingdom | - | | - |
| | Midway Electric Park | Wallkill, New York, United States | - | | - |
| | Millbrook Park | New Boston, Ohio, United States | - | | - |
| | Millsprings Amusement Park | Paducah, Kentucky, United States | - | - | - |
| | Minato Amusement Park | Minato, Osaka, Osaka, Japan | - | | - |
| | Minerva Amusement Park | Columbus, Ohio, United States | - | | - |
| | Mines Wonderland | Serdang, Selangor, Malaysia | - | ≤ | - |
| Mirabilandia | Olinda, Pernambuco, Brazil | - | | - |
| | Miracle Strip Amusement Park | Panama City Beach, Florida, United States | - | | - |
| Miragica | Molfetta, Apulia, Italy | - | | - |
| Mirapolis | Courdimanche, Île-de-France, France | - | | - |
| Misaki Park | Misaki, Sennan, Osaka, Japan | - | | - |
| | Miyun International Amusement Park | Miyun, Beijing, China | - | s | - |
| | M&M Amusement Park | San Juan, Puerto Rico, United States | - | ≤ | - |
| | Mogaiwa Dreamland | Minami, Sapporo, Hokkaido, Japan | - | ≤ | - |
| | Monarch Park | Oil City, Pennsylvania, United States | - | | - |
| | Monash Adventure Park | Monash, South Australia, Australia | Operating | s | - |
| | Monroe Piers | Monroe, Michigan, United States | - | | - |
| | Montaña Mágica | Villa Carlos Paz, Córdoba, Argentina | - | ≤ | - |
| | Monticello Amusement Park | Monticello, New York, United States | - | | - |
| | Mori No Yuenchi | Kyoto, Kyoto, Japan | - | | - |