| Sherborne, Digby Road | Oakey, Niall | 124 126 |
| South Perrott, Mohun House | Oakey, Niall | 124 126 |
| Cerne Abbas, The Old Forge | Oakey, Niall | 124 127 |
| Christchurch: Highcliffe Castle | Oakley, Niall | 119 160 |
| Pamphill, High Hall | Oakley, Niall | 120 105 |
| A tale of two skulls: superstition in Dorset at Waddon and Bettiscombe | O'Connell, Linda | 119 51-58 |
| A group of Middle Bronze Age socketed axes from East Dorset | O'Connor, Brendan | 125 144-6 |
| 10 St John's Hill, Wareham | O'Hara, Carol | 117 140 |
| Bestwall Barn, Wareham | O'Hara, Carol | 117 140 |
| Rainfall | Oliver, John | 120 123-126 |
| Rainfall | Oliver, John | 121 163-166 |
| Rainfall | Oliver, John | 122 179 |
| Rainfall | Oliver, John | 123 134 |
| Rainfall | Oliver, John | 124 131-135 |
| Rainfall | Oliver, John | 125 173-7 |
| Rainfall | Oliver, John | 126 197-202 |
| Dorset Rainfall 2005 | Oliver, John | 127 163-167 |
| Dorset rainfall 2006 | Oliver, John | 128 141-146 |
| Dorset rainfall 2007 | Oliver, John | 129 220-224 |
| Dorset rainfall 2008 | Oliver, John | 130 236-240 |
| Dorset Rainfall 2009 | Oliver, John | 131 197-202 |
| Dorset rainfall | Oliver, John | 132 208-213 |
| General weather summary 2011 | Oliver, John | 133 127-128 |
| Dorset rainfall 2011 | Oliver, John | 133 128-130 |
| General weather summary 2012 | Oliver, John | 134 248-249 |
| Dorset rainfall | Oliver, John | 134 249-255 |
| Thunderstorms | Oliver, John | 134 255-256 |
| Snowfall | Oliver, John | 134 255 |
| General weather survey | Oliver, John | 135 340-341 |
| Dorset rainfall | Oliver, John | 135 341-345 |
| General weather survey 2014 | Oliver, John | 136 204-205 |
| Dorset Rainfall 2014 | Oliver, John | 136 206-210 |
| Dorset rainfall 2015 | Oliver, John | 137 281-285 |
| General weather summary | Oliver, John | 138 161-163 |
| Rainfall | Oliver, John | 138 163-167 |
| General Weather Survey and Rainfall Report | Oliver, John | 139 236-242 |
| Dorset rainfall 2018 | Oliver, John | 140 175-180 |
| Christopher Gladstone Russell Riby Williams, 1921-1997 | Oram, Sarah | 119 215-216 |
| Late Saxon/ medieval activity west of Cranborne Road, Wimborne, Dorset | Orczewski, Piotr | 138 104-105 |
| Saxon and medieval settlement on the northern edge of Wimborne Minster, Dorset | Orczewski, Piotr | 139 134-162 |
| Land at Littlemoor, Weymouth | Orellana, Jonathan | 137 161 |
| North Poole, Canford Park, Bearwood, Poole, SZ 05090 97310 | Orellana, Jonathan | 140 60 |
| St Aldhelm's church and chapel in Dorset | Orme, Nicholas | 139 65-69 |
| Numbers of Mute Swans on the Fleet lagoon, Dorset, UK, AD 1808-2008, and their likely effects on nutrient loadings | O'Sullivan, Patrick | 130 175-182 |
| The archaeological context of the Roman coin hoard from Nether Compton | Oswin, John | 133 67-68 |
| A temporary section in the Gault at Fontmell Magna, North Dorset | Owen, H. G. | 112 95-97 |