| Wytham Woods University of Oxford | 431.95 ha | | — |
| Chimney Meadows | 257.59 ha | | — |
| Ashdown Park National Trust | 204.86 ha | | — |
| Faringdon Park | 108.76 ha | | — |
| Buscot Park | 35.3 ha | | — |
| Milton Hill House | 25.25 ha | | — |
| Hinksey Heights Nature Park | 23.57 ha | | — |
| Hurst Hill | 20.87 ha | | — |
| Kingston Bagpuize Park | 19.87 ha | | — |
| Marcham Park | 19.76 ha | | — |
| Radley Lakes | 19.01 ha | | — |
| Old Berkeley Golf Course Oxford Preservation Trust | 17.33 ha | | — |
| Egrove Park | 16.52 ha | | — |
| Folly Park | 15.0 ha | | — |
| Kingsgrove Woodland Walk | 13.22 ha | | — |
| Raleigh Park Oxford City Council | 11.4 ha | | — |
| Millennium Common | 10.9 ha | | — |
| Dry Sandford Pit | 9.0 ha | | — |
| Lashford Lane Fen | 8.29 ha | | — |
| Sutton Wick Nature Reserve | 8.19 ha | | — |
| Letcombe Valley BBOWT | 8.0 ha | | — |
| Louie Memorial Playing Fields | 7.71 ha | | — |
| Abbey Meadows | 7.4 ha | | — |
| Barton Fields | 7.36 ha | | — |
| Manor Road Memorial Park | 7.08 ha | | — |
| Parsonage Moor BBOWT | 6.34 ha | | — |
| Sutton Courtenay Environmental Centre | 6.23 ha | | — |
| Abbey Fishponds Earth Trust | 5.97 ha | | — |
| Chilswell Valley | 5.9 ha | | — |
| Albert Park | 5.74 ha | | — |
| Tuckmill Meadow BBOWT | 5.74 ha | | — |
| Cumnor Hurst Community Woodland Cumnor Hurst volunteers | 5.65 ha | | — |
| Phoebe Woods Millets Farm Centre | 5.33 ha | | — |
| Southern Town Park | 5.31 ha | | — |
| Shrike Meadow | 5.22 ha | | — |
| Ashdown House National Trust | 4.27 ha | | — |
| Fogwell Road Open Area | 4.23 ha | | — |
| Matthew Arnold's Field Oxford Preservation Trust | 3.79 ha | | — |
| Pinkhill Meadows | 3.46 ha | | — |
| Willow Walk Nature Reserve | 3.44 ha | | — |
| Hitchcopse Pit BBOWT | 2.92 ha | | — |
| Ladygrove Meadow | 2.69 ha | | — |
| Chilton Fields | 2.55 ha | | — |
| Millennium Green | 2.35 ha | | — |
| Abbey Gardens | 2.15 ha | | — |
| Community Woodland | 2.09 ha | | — |
| Buckthorn Meadow | 2.03 ha | | — |
| Hales Meadow | 1.99 ha | | — |
| Marina Park | 1.93 ha | | — |
| Jarn Wild Garden | 1.77 ha | | — |
| Lincombe Lane Field Oxford Preservation Trust | 1.63 ha | | — |
| Lower Field | 1.39 ha | | — |
| Kennington Pools Berks, Bucks and Oxon Wildlife Trust (BBOWT) | 1.38 ha | | — |
| Elizabeth Daryush Memorial Garden | 1.18 ha | | — |
| Blewbury Chalk Pit Local Wildlife Site | 1.09 ha | | — |
| Blewbury Nature Reserve Sustainable Blewbury | 1.08 ha | | — |
| Caterpillar park | 1.02 ha | 🛝 | — |
| Betjeman Millennium Park | 0.72 ha | | — |
| Top Lock Meadow Sustainable Wantage | 0.11 ha | | — |
| Parkinson's.Me Community Garden Parkinson's.Me | 0.09 ha | | — |
| Millbrook Community Plot Sustainable Wantage | — | | — |