Regions of Ireland
- Innishannon
- Inish
- India Bank
- Inchturk
- Inch Road Station
- Inch Point
- Inchmore
- Inchmore
- Inch Island
- Inchirourke More
- Inchiquin Lough
- Inchiquin
- Inchiquin Lough
- Inchigeelagh
- Inchicronan Lough
- Inchicore House
- Inchicore
- Inchibeg Bridge
- Inch House
- Inchcleraun
- Inchaquire
- Inchamay
- Inchagoill
- Lough Inch
- Inch
- Inch
- Inch
- Inch
- Inch
- Inch
- Inagh River
- Lough Inagh
- Inagh
- Glen of Imail
- Illaunmore
- Illauneeragh
- Illaunananima
- Illaunamid
- Illaunaleama
- Illanmaster
- River Ilen
- Iar Connacht
- Lough Hyne
- Hydepark House
- Hyde Park
- Hurlers Cross
- Huntingdon
- Hungry Hill
- Hughs Island
- Hugginstown
- Howth Junction Station
- Ben of Howth
- Howth
- Howes Strand
- Houndswood House
- Hospital
- Hoskyn Bank
- Hortland House
- Horse Rock
- Horseleap Cross Roads
- Horseleap
- Horse Island
- Horse Island
- Horse Island
- Horse Island
- Horse Island
- Horse and Jockey
- Horn Head House
- Horn Head
- Horetown House
- Hook Head
- Holy Island
- Holycross
- Holycross
- Holme
- Hollywoodrath
- Hollywood House
- Hollywood House
- Hollywood
- Hollymount House
- Hollymount
- Hollyfort
- Hollyford
- Ballyhealy
- Hollybrook House
- Hollybrook
- The Hollow
- Holeopen Bay West
- Holeopen Bay East
- Hogs Head
- Inis Bhig
- Hoddersfield House
- Hilton Park
- Hill Town
- Hilltown
- Hilltown
- Hilltown
- Hill Street
- Hillside
- Hillsbrook House
- Hill of Down Station
- Hill Castle
- Hillburn House
- High Street
- High Island
- High Island
- Highfort House
- Heywood House
- Hermitage House
- Hermitage
- Herbertstown House
- Herbertstown
- Hen Island
- Helvick Head
- Heirhill
- Heathview House
- Heathlawn
- Heathburn Hall
- Hearnesbrooke
- Headfort Demesne
- Headford Junction
- Headford Castle
- Headford
- Headborough House
- Hazelwood House
- Hazelhatch House
- Hazelhatch and Celbridge Station
- Haywood House
- Hay’s Bridge
- Hayes Bridge
- Haulbowline Island
- Hartstown
- Harrylock
- The Harrow
- Harristown Station
- Harristown
- Harperstown House
- Harlinstown
- Harleypark House
- Haremount
- Hare Island
- Hare Island
- Hare Island
- Harcourt Street Station
- Hamlinstown
- Halverstown House
- Halfway House
- Hags Head
- Hacketstown House
- Hacketstown
- Hackballs Cross
- The Hand Cross Roads
- Gyleen
- Gweestin River
- Gweesalia
- Gweedore River
- Gweedore Bay
- Gweedore
- Gweebarra River
- Gweebarra Bay
- Gurteenulla
- Gurteen Le Poer
- Gurteen House
- Gurteen House
- Gurteenard House
- Lough Gur
- Gunsborough
- Gull Island
- Gull Island
- Lough Guitane
- Guilford House
- Gubnaveagh
- Gubbaun Point
- Gubaveeny
- Grove House
- Grousehall
- Grogan
- Griffinstown
- Greystones
- Greybrook
- Grenagh
- Gregory’s Sound
- River Greese
- Greenwood
- Greenville House
- Greenpark House
- Greenore Point
- Greenore
- Greenoge
- Greenhills House
- Greenfield House
- Greencastle
- Greenan Mountain
- Greenane House
- Greenane
- Greenane
- Lough Greenan
- Greenan
- Great Sugar Loaf
- Skellig Michael