Here are a few examples:
- Amiens Street was The Strand
- Ardee Street was Crooked Staff
- Aughrim Street was part of Blackhorse Lane
- Back Lane was Rochel Street
- Balfe Lane was Pitt Street
- Belmont Avenue was Coldblow Lane
- Benburb Street was Barrack Street
- Bishop Street was Great Boater Lane
- Blackhall Place was The Gravel Walk
- Bow Lane was Elbow Lane
- Bow Street was Lough Buoy
- Brabazon Street was Cuckold's Row
- Bridgefoot Street was Dirty Lane
- Brookefield Avenue was Watery Lane
- Brookefield Road was Cutthroat Lane
- Camden Street was St. Kevin's Port
- Cathel Brugha Street was Gregg Lane
- Cathedral Lane was Cabbage Garden Lane
- Chancery Place was Mass Lane
- Christchurch Place was Skinners' Row
- Clonliffe Road was Fortick Road
- Collage Green was Hoggen Green
- Constitution Hill was Glasmunogue
- Dame Street was Tengmoutli Street
- Dean Street was Cross Poddle
- Digges Lane was Goat Alley
- Dorset Street was Drumcondra Lane
- Engine Alley was Indian Alley
- Essex Street was Orange Street and earlier it was Smock Alley
- Exchange Street Lower was The Blind Quay
- Exchequer Street was Chequer Street
- Foley Street was Montgomery Street and earlier it was World's End Lane
- Glover's Alley was Rapparee Alley
- Green Street was Abbey Green
- Haddington Road was Cottage Terrace
- Hammond Lane was Hangman's Lane
- Harrington Street was Whitworth Street
- High Street was Main Street
- Hill Street was Lower Temple Street
- Infirmary Road was Aberdeen Street
- Island Street was Dunghill Lane
- Lansdowne Road was Watery Lane
- Lincoln Lane was Pudding Lane
- Lincoln Place was Park Street and earlier it was St. Patrick's Well Lane
- Little Green Street was Bradogue Lane
- Little Ship Street was Pole Mill Street
- Lower Baggot Street was Gallows Road
- Lower Gardiner Street was The Old Rope Walk
- Mary's Lane was Broad Street
- Mercer Street was French Street
- Mespil Road was Gibbet Meadow
- North Brunswick Street was Channel Row
- North Lotts was Newfoundland
- O'Connell Street was Sackville Street
- Upper O'Connell Street was Drogheda Street
- Old Kilmainham was Murdering Lane
- Oliver Bond Street was Mullinahack
- Parnell Square was Rutland Square
- Parnell Street was Great Britain Street
- Pearse Street was Great Brunswick Street
- Pimlico was Donour Street
- Prussia Street was Cabragh Lane
- Railway Street was Upper Tyrone Street and earlier it was a Part of Mecklenburgh Street (see Waterford St.)
- Sackville Place was Tucker's Row
- Sean McDermott Street was Gloucster Street and earlier it was Great Martin's Lane
- Shelbourne Road was Artichoke Road
- St. Andrew's Street was Hog Hill & earlier it was Hoggen Hill
- St. Michael's Lane was Macgillamocholmog's Street
- St. Stephens's Green North was Beaux Walk
- St. Stephen's Green South was Leeson's Walk
- St. Stephen's Green East was Monk's Walk
- St. Stephen's Green West was French Walk
- Talbot Street was Cope Street North
- Townsend Street was Lazy Hill and earlier it was Lazar's Hill
- Usher's Lane was Dog And Duck Yard
- Waterford Street was Lower Tyrone Street and earlier it was Part of Mecklenburg Street (see Railway Street)
- Wellington Street was Paradise Row
- Wolfe Tone Street was Stafford Street
This is not a complete list of street name changes, but just be careful if you have an older map.