- Irchester
- Ireby
- Ireleth
- Ireton Wood
- Irlam
- Irnham
- Iron Acton
- Ironbridge
- Irthington
- Irthlingborough
- Isfield
- Isham
- Isle Brewers
- Isla de Wight
- Isleham
- Isles of Scilly
- Isleworth
- Itchen Abbas
- Itchenor
- Itchingfield
- Itteringham
- Ivegill
- Iver
- Iver Heath
- Ivinghoe
- Ivybridge
- Iwerne Courtney
- Iwerne Minster
- Ixworth
- Ixworth Thorpe