| Northill | Electoral ward | E05014418 |
| Northleach | Electoral ward | E05010714 |
| Northolt Mandeville | Electoral ward | E05013531 |
| Northolt West End | Electoral ward | E05013532 |
| Northowram and Shelf | Electoral ward | E05001378 |
| Northstead | Electoral ward | E05014301 |
| Northumberland | Electoral ward | E05001126 |
| Northumberland Heath | Electoral ward | E05011228 |
| Northumberland Park | Electoral ward | E05013596 |
| Northway | Electoral ward | E05012076 |
| Northwell | Electoral ward | E05014746 |
| Northwich Leftwich | Electoral ward | E05012229 |
| Northwich Winnington & Castle | Electoral ward | E05012230 |
| Northwich Witton | Electoral ward | E05012231 |
| Northwick Park | Electoral ward | E05013505 |
| Northwood | Electoral ward | E05005096 |
| Northwood | Electoral ward | E05010938 |
| Northwood | Electoral ward | E05013574 |
| Northwood Hills | Electoral ward | E05013575 |
| Norton | Electoral ward | E05001251 |
| Norton | Electoral ward | E05009842 |
| Norton | Electoral ward | E05014300 |
| Norton & Askern | Electoral ward | E05010740 |
| Norton Canes | Electoral ward | E05006914 |
| Norton Central | Electoral ward | E05014875 |
| Norton North | Electoral ward | E05013185 |
| Norton North | Electoral ward | E05014876 |
| Norton South | Electoral ward | E05014877 |
| Norton South & Preston Brook | Electoral ward | E05013186 |
| Norwood | Electoral ward | E05000948 |
| Norwood Green | Electoral ward | E05013533 |
| Notting Dale | Electoral ward | E05009399 |
| Nottingham Road | Electoral ward | E05010616 |
| Nunhead & Queen's Road | Electoral ward | E05011108 |
| Nunnery | Electoral ward | E05007886 |
| Nunthorpe | Electoral ward | E05015469 |
| Nuthall East & Strelley | Electoral ward | E05015568 |
| Nuthurst & Lower Beeding | Electoral ward | E05011823 |
| Oadby Brocks Hill | Electoral ward | E05005531 |
| Oadby Grange | Electoral ward | E05005532 |
| Oadby St Peter's | Electoral ward | E05005533 |
| Oadby Uplands | Electoral ward | E05005534 |
| Oadby Woodlands | Electoral ward | E05005535 |
| Oak Tree | Electoral ward | E05014630 |
| Oakdale | Electoral ward | E05012671 |
| Oakengates & Ketley Bank | Electoral ward | E05015230 |
| Oakham | Electoral ward | E05014631 |
| Oakham North East | Electoral ward | E05012641 |
| Oakham North West | Electoral ward | E05012642 |
| Oakham South | Electoral ward | E05012643 |
| Oakley | Electoral ward | E05004297 |
| Oakley | Electoral ward | E05013230 |
| Oakley & The Candovers | Electoral ward | E05013088 |
| Oakthorpe & Donisthorpe | Electoral ward | E05010119 |
| Oakwood | Electoral ward | E05013687 |
| Oakwood | Electoral ward | E05015522 |
| Oatlands & Pannal | Electoral ward | E05014302 |
| Oatlands and Burwood Park | Electoral ward | E05011082 |
| Ockbrook & Borrowash | Electoral ward | E05010617 |
| Ockendon | Electoral ward | E05002239 |
| Odd Down | Electoral ward | E05012479 |
| Odd Rode | Electoral ward | E05008644 |
| Odiham | Electoral ward | E05009360 |
| Offerton | Electoral ward | E05015032 |
| Offington | Electoral ward | E05007703 |
| Offmore & Comberton | Electoral ward | E05010511 |
| Okehampton North | Electoral ward | E05010561 |
| Okehampton South | Electoral ward | E05010562 |
| Old Barrow and Hindpool | Electoral ward | E05014240 |
| Old Catton and Sprowston West | Electoral ward | E05005773 |
| Old Costessey | Electoral ward | E05011885 |
| Old Coulsdon | Electoral ward | E05011474 |
| Old Dalby | Electoral ward | E05005507 |
| Old Dean | Electoral ward | E05012033 |
| Old Glossop | Electoral ward | E05010641 |
| Old Gore | Electoral ward | E05009475 |
| Old Harlow | Electoral ward | E05004186 |
| Old Hastings | Electoral ward | E05011210 |
| Old Heath and The Hythe | Electoral ward | E05010836 |
| Old Kent Road | Electoral ward | E05011109 |
| Old Leake and Wrangle | Electoral ward | E05009626 |
| Old Malden | Electoral ward | E05013942 |
| Old Moat | Electoral ward | E05011375 |
| Old Sarum & Lower Bourne Valley | Electoral ward | E05013453 |
| Old Skelmersdale | Electoral ward | E05014933 |
| Old Swan East | Electoral ward | E05015315 |
| Old Swan West | Electoral ward | E05015316 |
| Old Town | Electoral ward | E05000988 |
| Old Town | Electoral ward | E05004811 |
| Old Town | Electoral ward | E05008963 |
| Old Town | Electoral ward | E05011578 |
| Old Trafford | Electoral ward | E05015253 |
| Old Warley | Electoral ward | E05001272 |
| Old Windsor | Electoral ward | E05012507 |
| Oldbury | Electoral ward | E05001273 |
| Oldfield | Electoral ward | E05012508 |
| Oldfield Park | Electoral ward | E05012480 |
| Ollerton | Electoral ward | E05010078 |
| Olney | Electoral ward | E05009418 |
| Olton | Electoral ward | E05001294 |
| Ombersley | Electoral ward | E05015462 |
| Onehouse | Electoral ward | E05012605 |
| Onslow | Electoral ward | E05014954 |
| Orchard | Electoral ward | E05009816 |
| Orchard Park | Electoral ward | E05011539 |
| Ordsall | Electoral ward | E05013028 |
| Ore | Electoral ward | E05011211 |
| Orford | Electoral ward | E05011038 |
| Ormesby | Electoral ward | E05005796 |
| Ormesby | Electoral ward | E05012451 |
| Ormsgill and Parkside | Electoral ward | E05014241 |
| Ormskirk East | Electoral ward | E05014934 |
| Ormskirk West | Electoral ward | E05014935 |
| Orpington | Electoral ward | E05014001 |
| Orrell | Electoral ward | E05015005 |
| Orrell Park | Electoral ward | E05015317 |
| Orsett | Electoral ward | E05002240 |
| Orton Longueville | Electoral ward | E05010818 |
| Orton Waterville | Electoral ward | E05010819 |
| Orwell | Electoral ward | E05012581 |
| Orwell & Villages | Electoral ward | E05015551 |
| Osbaldwick & Derwent | Electoral ward | E05010326 |
| Osborne | Electoral ward | E05013382 |
| Oscott | Electoral ward | E05011159 |
| Osgoldcross | Electoral ward | E05014303 |
| Osney & St Thomas | Electoral ward | E05013111 |
| Ossett | Electoral ward | E05001454 |
| Osterley & Spring Grove | Electoral ward | E05013626 |
| Oswestry East | Electoral ward | E05009282 |
| Oswestry South | Electoral ward | E05009283 |
| Oswestry West | Electoral ward | E05009284 |
| Otford and Shoreham | Electoral ward | E05009962 |
| Otley & Yeadon | Electoral ward | E05011549 |
| Ottershaw | Electoral ward | E05012897 |
| Ottery St Mary | Electoral ward | E05011801 |
| Oulton Broad | Electoral ward | E05012754 |
| Oundle | Electoral ward | E05013231 |
| Ouse Valley & Ringmer | Electoral ward | E05011593 |
| Ouseburn | Electoral ward | E05011455 |
| Ouseburn | Electoral ward | E05014304 |
| Oval | Electoral ward | E05014108 |
| Ovenden | Electoral ward | E05001379 |
| Over & Willingham | Electoral ward | E05013881 |
| Overdale & The Rock | Electoral ward | E05015231 |
| Overton | Electoral ward | E05005216 |
| Overton | Electoral ward | E05014899 |
| Owlsmoor & College Town | Electoral ward | E05014763 |
| Oxhey | Electoral ward | E05011052 |
| Oxhey Hall & Hayling | Electoral ward | E05009434 |
| Oxley | Electoral ward | E05014850 |