class="fn org" | Ossett Spa | class="adr" | Wakefield | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ossett Street Side | class="adr" | Wakefield | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ossington | class="adr" | Nottinghamshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ostend | class="adr" | Essex | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ostend | class="adr" | Norfolk | class="note" | | class="note" | |- class="vcard" | class="fn org" | Osterley | class="adr" | Hounslow | class="note" | | class="note" | |- class="vcard" | class="fn org" | Oswaldkirk | class="adr" | North Yorkshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Oswaldtwistle | class="adr" | Lancashire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Oswestry (Croeswallt) | class="adr" | Shropshire | class="note" | | class="note" | |} Ot |- class="vcard" | class="fn org" | Otby | class="adr" | Lincolnshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Oteley | class="adr" | Shropshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otford | class="adr" | Kent | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otham | class="adr" | Kent | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otham Hole | class="adr" | Kent | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otherton | class="adr" | Staffordshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Othery | class="adr" | Somerset | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otley | class="adr" | Leeds | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otley | class="adr" | Suffolk | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otterbourne | class="adr" | Hampshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otterburn | class="adr" | North Yorkshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otterburn | class="adr" | Northumberland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otterburn Camp | class="adr" | Northumberland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Otterden Place | class="adr" | Kent | class="note" | | class="note" | |-