| RSPB Franchises Wood RSPB | 392.74 ha | 🐕 | — |
| Stourhead Park National Trust | 271.28 ha | | — |
| Blakehill Farm | 256.6 ha | | — |
| Parsonage Down | 187.83 ha | | — |
| Pewsey Downs National Nature Reserve Natural England | 178.41 ha | 🐕 | — |
| Bowerchalke Downs SSSI | 140.59 ha | | — |
| Cleveland Lakes Nature Reserve | 111.19 ha | | — |
| Ravensroost Nature Reserve | 101.89 ha | | — |
| Knapp and Barnett's Downs SSSI | 84.62 ha | | — |
| Prescombe Down | 82.81 ha | | — |
| Compton Bassett Park | 82.67 ha | | — |
| Lower Moor Farm Nature Reserve Wiltshire Wildlife Trust | 76.71 ha | | — |
| Colerne Park Woodland Trust | 61.2 ha | | — |
| Throope Down Wilton Estate | 49.93 ha | | — |
| Castle Hill Country Park | 49.07 ha | | — |
| Charter Park | 47.86 ha | | — |
| Blackland Park | 45.69 ha | | — |
| Southwick Country Park | 43.14 ha | | — |
| Stratford Tony Down | 42.02 ha | | — |
| Bowood Gardens | 40.59 ha | | — |
| Green Lane Wood | 39.65 ha | | — |
| Clattinger Farm Nature Reserve Wiltshire Wildlife Trust | 36.4 ha | | — |
| Jones's Mill - The Vera Jeans Nature Reserve Wiltshire Wildlife Trust | 34.74 ha | | — |
| Westmead Open Space | 32.69 ha | | — |
| Cole Park | 32.54 ha | | — |
| Clearbury Down | 31.97 ha | | — |
| Cloatley Meadows | 31.72 ha | | — |
| Langford Lakes Nature Reserve Wiltshire Wildlife Trust | 31.08 ha | | — |
| Great Yews Longford Estate | 29.63 ha | | — |
| Southwick Country Park | 29.43 ha | | — |
| Middleton Down Nature Reserve Wiltshire Wildlife Trust | 29.15 ha | 🐕 | — |
| Coombe Bissett Down Wiltshire Wildlife Trusts | 28.63 ha | | — |
| Morningside Meadows | 26.04 ha | 🐕 | — |
| Waterhay Reedbeds | 26.02 ha | | — |
| The Devenish Wiltshire Wildlife Trust | 23.17 ha | | — |
| Monkton Park | 21.08 ha | | — |
| Birds Marsh | 20.72 ha | | — |
| Corsham Court | 19.18 ha | | — |
| Pitter's Wood | 15.93 ha | | — |
| Coronation Country Park Royal Wootton Bassett Town Council | 15.72 ha | | — |
| Echo Lodge Meadows | 15.02 ha | 🐕 | — |
| Homington Down | 14.69 ha | | — |
| Paxcroft Brook Park | 14.17 ha | | — |
| Avebury Stone Circle | 13.92 ha | | — |
| Bay Meadows | 13.16 ha | 🐕 | — |
| Chickengrove Bottom SSSI | 12.59 ha | | — |
| Faulston Hole | 12.58 ha | | — |
| Penn Wood Nature Reserve Wiltshire Wildlife Trust | 12.26 ha | | — |
| Morgan's Hill Wiltshire Wildlife Trust | 11.8 ha | | — |
| High Clear Down | 10.56 ha | | — |
| Churchill Gardens | 9.63 ha | | — |
| Coulston Deer Park | 9.54 ha | | — |
| Avon Valley Nature Reserve | 8.92 ha | | — |
| The Common | 8.7 ha | | — |
| Hazelbury Manor | 8.27 ha | | — |
| Vincients Wood | 7.89 ha | | — |
| Southmill Hill Country Park | 7.65 ha | | — |
| Landford Bog SSSI Wiltshire Wildlife Trust | 6.95 ha | | — |
| Stonebridge Meadow Nature Reserve | 6.81 ha | | — |
| Bathampton House | 6.61 ha | | — |
| Lake Pleasure Grounds | 6.57 ha | | — |
| Barton Farm Country Park | 6.49 ha | | — |
| Victoria Park | 6.39 ha | | — |
| Cocklemore Brook | 6.3 ha | | — |
| Smallbrook Meadows Wiltshire Wildlife Trust | 6.09 ha | | — |
| Green Lane Playing Fields | 5.91 ha | | — |
| John Cole's Park | 5.83 ha | | — |
| Pike's Corner | 5.73 ha | | — |
| The Park | 5.43 ha | | — |
| Shurnhold Fields Country Park | 5.33 ha | | — |
| Larmer Tree Gardens | 5.28 ha | | — |
| King George V Park | 5.14 ha | | — |
| Sutton Lane Meadows National Trust | 4.88 ha | | — |
| The Close | 4.64 ha | | — |
| Warminster Common | 4.5 ha | | — |
| Downton Millennium Green | 4.37 ha | | — |
| Castlefields Park | 4.25 ha | | — |
| Jubilee Lake | 4.2 ha | | — |
| Ludgershall Castle | 4.03 ha | | — |
| Vivash Park Westbury Town Council | 3.99 ha | | — |
| Downton Moot | 3.58 ha | | — |
| Norrington Common | 3.56 ha | | — |
| Ashton Keynes Millennium Green | 3.19 ha | | — |
| The Green | 3.16 ha | | — |
| Queen Elizabeth Gardens | 3.13 ha | | — |
| Community Field Tisbury Parish Council | 2.84 ha | 🐕 | — |
| Iford Manor Gardens | 2.66 ha | | — |
| Penleigh Park | 2.65 ha | | — |
| The Courts Garden National Trust | 2.65 ha | | — |
| Upper Waterhay Meadow Wiltshire Wildlife Trust | 2.51 ha | | — |
| Box Hill Common | 2.46 ha | | — |
| Yeates Meadow | 2.46 ha | | — |
| Webb's Patch | 2.38 ha | | — |
| Millennium Park | 2.35 ha | | — |
| Beechfield Nature Area | 2.32 ha | | — |
| Heale Gardens | 2.28 ha | | — |
| Silbury Hill English Heritage | 2.21 ha | | — |
| Millennium Park | 2.17 ha | | — |
| Neston park | 2.11 ha | | — |
| Baydons Meadow | 2.01 ha | | — |
| Shalbourne Sports Ground | 2.01 ha | | — |
| Westcroft Park | 2.0 ha | | — |
| Cadenham Manor | 1.92 ha | | — |
| Hillworth Park | 1.9 ha | | — |
| Raleigh Crescent Park | 1.89 ha | | — |
| St. Aldhelm Mead | 1.88 ha | | — |
| Walled Garden | 1.88 ha | | — |
| Harvard Park Amesbury Town Council | 1.86 ha | | — |
| Fairfield Park | 1.82 ha | | — |
| The Island | 1.77 ha | | — |
| Avebury Manor Garden National Trust | 1.76 ha | | — |
| Franks Wood | 1.75 ha | | — |
| Kingsley Park | 1.68 ha | | — |
| Abbey House Gardens | 1.66 ha | | — |
| Wyndham Park | 1.63 ha | | — |
| Longleaze Park | 1.58 ha | | — |
| Bourne Hill Gardens | 1.44 ha | | — |
| Littlecote Roman Villa | 1.44 ha | | — |
| Westwood Park | 1.41 ha | | — |
| Baydon's Wood | 1.26 ha | | — |
| White Lion Park | 1.23 ha | | — |
| Bowood Playground | 1.22 ha | | — |
| Hat Gate | 1.21 ha | | — |
| Levi's Park | 1.2 ha | | — |
| The Greencroft | 1.2 ha | | — |
| Pewsham Park | 1.17 ha | | — |
| Gascelyn Park | 1.12 ha | | — |
| Redlynch Bike Park Redlynch Parish Council | 0.78 ha | | — |
| Ramsbury Meadow Wiltshire Wildlife Trust | 0.54 ha | | — |
| Corston Quarry and Pond Local Nature Reserve Malmesbury St Paul Without Parish Council | 0.5 ha | | — |
| Wootton Bassett Mud Springs Wiltshire Council | 0.5 ha | | — |
| The Green Wiltshire Council | 0.32 ha | | — |
| The Green Marlborough Town Council | 0.2 ha | | — |
| Ordnance House Ordnance House | 0.17 ha | | — |
| Wye House Gardens Marlborough Town Council | 0.16 ha | | — |
| St Mary's Churchyard Marlborough Town Council | 0.09 ha | | — |
| Milford Hollow Nature Reserve | 0.08 ha | | — |
| Garden of Remembrance Corsham Town Council | 0.02 ha | | — |