| Willen Lake The Parks Trust | 142.06 ha | | — |
| Caldecotte Lake The Parks Trust | 103.46 ha | | — |
| Ouzel Valley Park The Parks Trust | 72.08 ha | | — |
| Stanton Low Park The Parks Trust | 53.38 ha | | — |
| Ouse Valley Park The Parks Trust | 53.07 ha | | — |
| Emberton Country Park Milton Keynes City Council | 45.78 ha | 🐕 | — |
| The Floodplain Forest Nature Reserve The Parks Trust | 45.38 ha | | — |
| Ouse Valley Park The Parks Trust | 44.33 ha | | — |
| Linford Wood The Parks Trust | 43.53 ha | | — |
| Little Linford Wood | 43.27 ha | | — |
| Furzton Lake The Parks Trust | 39.98 ha | | — |
| Campbell Park The Parks Trust | 39.45 ha | | — |
| Blue Lagoon Local Nature Reserve | 39.19 ha | | — |
| Ouzel Valley Park The Parks Trust | 38.28 ha | | — |
| Linford Lakes Nature Reserve The Parks Trust | 37.17 ha | | — |
| Shenley Wood Park The Parks Trust | 35.8 ha | | — |
| Howe Park Wood The Parks Trust | 31.3 ha | | — |
| Stony Stratford Nature Reserve The Parks Trust | 27.45 ha | | — |
| Teardrop Lakes The Parks Trust | 25.6 ha | | — |
| Loughton Valley Linear Park The Parks Trust | 23.66 ha | | — |
| South Loughton Valley Park | 23.25 ha | | — |
| Waterhall Park The Parks Trust | 22.16 ha | | — |
| Tattenhoe Valley Park The Parks Trust | 21.67 ha | | — |
| Ouzel Valley Park The Parks Trust | 21.21 ha | | — |
| Mount Farm Park | 19.73 ha | | — |
| Ouse Valley Park The Parks Trust | 19.49 ha | | — |
| Tattenhoe Valley Park The Parks Trust | 17.66 ha | | — |
| Ouse Valley Park The Parks Trust | 16.7 ha | | — |
| Loughton Valley Linear Park The Parks Trust | 14.43 ha | | — |
| Middleton The Parks Trust | 14.15 ha | | — |
| Great Linford Park The Parks Trust | 14.02 ha | | — |
| Lodge Lake The Parks Trust | 13.95 ha | | — |
| Tattenhoe Valley Park The Parks Trust | 13.74 ha | | — |
| Pineham The Parks Trust | 13.65 ha | | — |
| Mauretania way Park & Lake | 12.82 ha | | — |
| The Poplar Plantation The Parks Trust | 12.35 ha | | — |
| Ashland Lakes The Parks Trust | 11.88 ha | | — |
| Walton Lake The Parks Trust | 11.83 ha | | — |
| Stonepit Field The Parks Trust | 11.73 ha | | — |
| Ouse Valley Park The Parks Trust | 11.44 ha | | — |
| Ouzel Valley Park The Parks Trust | 11.37 ha | | — |
| Emerson Valley District Park | 11.24 ha | | — |
| Tattenhoe Lane Sport Ground | 10.73 ha | | — |
| Wolverton Mill Balancing Lake The Parks Trust | 10.41 ha | | — |
| Broughton Brook Linear Park The Parks Trust | 10.35 ha | | — |
| Ouzel Valley Park The Parks Trust | 10.31 ha | | — |
| Kents Hill Park and Sports Ground | 10.26 ha | | — |
| Atterbury The Parks Trust | 10.22 ha | | — |
| Caldecotte Lake North | 10.1 ha | | — |
| Caldecotte Lake North | 9.69 ha | | — |
| Broughton Brook Park The Parks Trust | 9.53 ha | | — |
| Great Linford Manor Park The Parks Trust | 9.53 ha | | — |
| Tattenhoe Valley Park The Parks Trust | 9.39 ha | | — |
| Loughton Valley Linear Park The Parks Trust | 9.17 ha | | — |
| Riverside Meadow | 8.64 ha | | — |
| Loughton Valley Linear Park The Parks Trust | 8.52 ha | | — |
| Woughton on the Green The Parks Trust | 8.45 ha | | — |
| Broughton Brook Linear Park The Parks Trust | 8.05 ha | | — |
| Tattenhoe Park The Parks Trust | 7.97 ha | | — |
| Pineham Nature Reserve The Parks Trust | 7.86 ha | | — |
| Brooklands Ridge | 7.6 ha | | — |
| Waterhall Park | 7.08 ha | | — |
| Ouzel Valley Park The Parks Trust | 6.72 ha | | — |
| Kents Hill Park The Parks Trust | 6.29 ha | | — |
| Chepstow Drive Local Park | 6.2 ha | | — |
| Glebe Farm Wetlands The Parks Trust | 6.14 ha | | — |
| Rickley Park | 5.25 ha | | — |
| Broughton Brook Linear Park The Parks Trust | 5.24 ha | | — |
| Broughton Brook Park | 5.06 ha | | — |
| Wavendon Heights Playing Fields | 5.06 ha | | — |
| Kingsmead Spinney The Parks Trust | 4.9 ha | | — |
| Burgess Gardens | 4.88 ha | | — |
| The Tree Cathedral The Parks Trust | 4.84 ha | | — |
| Fairfields Park Barrett Homes | 4.75 ha | | — |
| The Toot (Site of Medieval Fort) The Parks Trust | 4.62 ha | | — |
| Brooklands Meadows Park The Parks Trust | 4.53 ha | | — |
| Lakes Lane and Westbury Parks | 4.47 ha | | — |
| Elfield Nature Park | 4.44 ha | | — |
| Loughton Valley Linear Park The Parks Trust | 4.33 ha | | — |
| Stanton Wood The Parks Trust | 4.24 ha | | — |
| Canal Broadwalk The Parks Trust | 3.96 ha | | — |
| Broughton Brook Linear Park The Parks Trust | 3.93 ha | | — |
| Newlands The Parks Trust | 3.77 ha | | — |
| Leon Park | 3.63 ha | | — |
| Castle Meadow | 3.4 ha | | — |
| Oxley Park The Parks Trust | 3.4 ha | | — |
| WEA Local Park 4 | 3.37 ha | | — |
| Eagle Farm Wetlands The Parks Trust | 3.33 ha | | — |
| Canal Open Space The Parks Trust | 3.1 ha | | — |
| Wildwood The Parks Trust | 2.91 ha | | — |
| Loughton Valley Linear Park The Parks Trust | 2.61 ha | | — |
| Loughton Valley Linear Park The Parks Trust | 2.55 ha | | — |
| Loughton Valley Linear Park The Parks Trust | 2.51 ha | | — |
| New Bradwell Local Park | 2.5 ha | | — |
| Caldecotte Brook The Parks Trust | 2.43 ha | | — |
| Canal Broadwalk The Parks Trust | 2.43 ha | | — |
| Browns Wood Field | 2.32 ha | | — |
| Caldecotte Brook The Parks Trust | 2.25 ha | | — |
| Community Orchard The Parks Trust | 2.12 ha | | — |
| Brooklands Meadows Park The Parks Trust | 2.1 ha | | — |
| Lady Margery's Gorse | 2.02 ha | | — |
| Eight Belles Park | 1.97 ha | | — |
| Whitehouse Park The Parks Trust | 1.81 ha | | — |
| Brook Furlong | 1.64 ha | | — |
| Canal Open Space The Parks Trust | 1.6 ha | | — |
| Lakeside Park | 1.5 ha | | — |
| Haversham Recreation Ground | 1.47 ha | | — |
| Caldecotte Brook The Parks Trust | 1.34 ha | | — |
| Canal Broadwalk The Parks Trust | 1.32 ha | | — |
| Great Linford Brick Kilns The Parks Trust | 1.29 ha | | — |
| Canal Broadwalk The Parks Trust | 1.28 ha | | — |
| Fred Roche Gardens | 1.26 ha | | — |
| Shearing Park The Parks Trust | 1.2 ha | | — |
| Brooklands Meadows Park The Parks Trust | 1.12 ha | | — |
| Montague Crescent SuDS The Parks Trust | 1.05 ha | | — |
| Wavendon Heights Playing Fields | 1.05 ha | | — |
| Woolstone Green The Parks Trust | 1.04 ha | | — |
| Milton Road Circus The Parks Trust | 1.01 ha | | — |
| Mortimer Park | 0.99 ha | | — |
| Canal Broadwalk The Parks Trust | 0.95 ha | | — |
| Snail Park | 0.86 ha | | — |
| Grafton Park | 0.83 ha | | — |
| Secret Garden | 0.81 ha | | — |
| Brooklands Meadows Park The Parks Trust | 0.8 ha | | — |
| Corner Pin | 0.8 ha | | — |
| Jupiter Gardens SuDS The Parks Trust | 0.79 ha | | — |
| Ousebank Gardens | 0.78 ha | | — |
| Hockliffe Brae unused park | 0.76 ha | | — |
| Flowers Park | 0.73 ha | | — |
| Open University grounds | 0.71 ha | | — |
| Hindhead Knoll Park | 0.7 ha | | — |
| Church Green Park | 0.66 ha | | — |
| Church Green Park | 0.65 ha | | — |
| Lautier Park The Parks Trust | 0.65 ha | | — |
| Sorrell Drive | 0.6 ha | | — |
| Countess Way Plaza The Parks Trust | 0.59 ha | | — |
| Caldecotte Brook The Parks Trust | 0.56 ha | | — |
| Hazeley Wood The Parks Trust | 0.46 ha | | — |
| Prehistoric Park The Parks Trust | 0.46 ha | | — |
| Glenwoods | 0.45 ha | | — |
| Caldecotte Brook | 0.44 ha | | — |
| Ellerman Square The Parks Trust | 0.37 ha | | — |
| All Hallows The Parks Trust | 0.34 ha | | — |
| Brooklands Meadows Park The Parks Trust | 0.34 ha | | — |
| Studley Knapp Play Area | 0.32 ha | | — |
| Firthwood Park | 0.31 ha | | — |
| The Arboretum | 0.27 ha | | — |
| Mulberry Lawn | 0.26 ha | | — |
| Queen Eleanor Garden | 0.24 ha | | — |
| Prehistoric Park The Parks Trust | 0.23 ha | | — |
| Cook's Place | 0.2 ha | | — |
| Walton Road Park | 0.19 ha | | — |
| Eridge Green | 0.18 ha | | — |
| Wilsley Pound Play Area | 0.18 ha | | — |
| Ryeland Square The Parks Trust | 0.17 ha | | — |
| Dog park | 0.16 ha | | — |
| Brooklands Meadows Park The Parks Trust | 0.14 ha | | — |
| Flora Thompson | 0.14 ha | | — |
| Friary Gardens | 0.12 ha | | — |
| Prehistoric Park The Parks Trust | 0.12 ha | | — |
| Flower and Summer Gardens Cowper & Newton Museum | 0.1 ha | | — |
| War Memorial | 0.09 ha | | — |
| Prehistoric Park The Parks Trust | 0.07 ha | | — |
| Sensory Garden | 0.07 ha | | — |
| Wordsworth Avenue | 0.07 ha | | — |
| Walled Flower Garden Cowper & Newton Museum | 0.06 ha | | — |
| West Bletchley Sensory Gardens | 0.06 ha | | — |
| Zen Garden Relaxation Park | 0.05 ha | | — |
| Annesley Road Park | 0.04 ha | | — |
| The Arboretum | 0.04 ha | | — |
| The Garden for the Blind | 0.04 ha | | — |
| Four Seasons Garden | 0.02 ha | | — |
| Open University - Grass Knot | 0.01 ha | | — |