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- Gallagher Park
- Gariepy Park
- Garneau Park
- Garner Lake Provincial Park
- Gateway Park
- G. Edmund Kelly Park
- George Lane Park
- Georgetown Park
- Ghv Bulyea Park
- Giovanni Caboto Park
- Glastonbury Park
- Glenbow Ranch Provincial Park
- Glengarry Park
- Glenora Park
- Glenwood Park
- Gold Bar Park
- Goldstick Park
- Gooseberry Lake Provincial Park
- Government House Park
- Grand River Park
- Granville Park
- Graunke Park
- Greene Valley Provincial Park
- Greenfield Park
- Greenview Park
- Gregoire Lake Provincial Park
- Grenadier Park
- Griffith's Woods
- Grosvenor Park
- Guinivere Park
- Gyro Park
