| | Gulf Shores Amusement Park | Gulf Shores, Alabama, United States | - | - | - |
| Gulliverlandia | Lignano Sabbiadoro, Friuli-Venezia Giulia, Italy | - | ≤ | - |
| Gulliver-Welt | Saarbrücken, Saarland, Germany | - | | - |
| Gumbuya World | Tynong , Victoria, Australia | Operating | | 3 |
| | Guobaying Amusement Park | Jiawang, Xuzhou, Jiangsu, China | - | | - |
| | Gwynn Oak Park | Baltimore, Maryland, United States | - | - | - |
| | Habana Park | Havana, Havana, Cuba | - | ≤ | - |
| Habtoorland | Jamhour Haret El Sit, Mount Lebanon, Lebanon | SBNO | | - |
| | Hague Park | Jackson, Michigan, United States | - | ≤ | - |
| | Haibei Eryou Lecheng | Songshan, Chifeng, Nei Mongol, China | - | - | - |
| Haigeng Park | Xishan, Kunming, Yunnan, China | SBNO | | 1 |
| Haiwan Park | Siming, Xiamen, Fujian, China | - | - | - |
| | Haiyue Lake Park | Dongguan, Guangdong, China | - | - | - |
| Halmstad Äventyrsland | Halmstad, Halland, Sweden | SBNO | | 1 |
| | Hama Blanca | Shirahama, Nishimuro, Wakayama, Japan | - | | - |
| | Hamel's Park | Shreveport, Louisiana, United States | - | - | - |
| | Hangzhou Children's Park | Shangcheng, Hangzhou, Zhejiang, China | - | | - |
| | Hanlan's Point | Toronto, Ontario, Canada | - | - | - |
| | Hanshin Park | Koshien, Nishinomiya, Hyōgo, Japan | - | | - |
| | Happiland | Southport, Merseyside, England, United Kingdom | - | - | - |
| | Happy City | Mudan, Heze, Shandong, China | - | | - |
| | Happy Fun | Umm Al Quawain, United Arab Emirates | - | - | - |
| | Happy Land | Yanbu, Al Madinah, Saudi Arabia | - | ≤ | - |
| | Happyland | Chimbote, Áncash, Peru | - | | - |