This is a list of places in Republic of Ireland which have standing links to local communities in other countries known as "town twinning" (usually in Europe) or "sister cities" (usually in the rest of the world). In the Republic of Ireland, this association is formalised by local government.

A

Adare

Buckow, Germany

Villecresnes, France

Ardee

Nettuno, Italy

Arklow

Aberystwyth, Wales, United Kingdom

Châteaudun, France

Askeaton

Montbron, France

Athboy

Béthancourt-en-Valois, France

Feigneux, France

Fresnoy-la-Rivière, France

Gilocourt, France

Glaignes, France

Morienval, France

Orrouy, France

Russy-Bémont, France

Séry-Magneval, France

Athenry

Quimperlé, France

Renews-Cappahayden, Canada

Athlone

Châteaubriant, France

Athy

Grandvilliers, France

Avoca

Bromham, England, United Kingdom

B

Bagenalstown

Pont-Péan, France

Balbriggan

Belmar, United States

Sankt Wendel, Germany

Ballina

Athis-Mons, France

Pittsfield, United States

Scranton, United States

Ballinasloe

Chalonnes-sur-Loire, France

Moyle, Northern Ireland, United Kingdom

Ballincollig

Mechterstädt (Hörsel), Germany

Saclay, France

Ballybay

Osterhofen, Germany

Ballydehob

Cléden-Cap-Sizun, France

Ballylanders

Wyandotte County, United States

Ballymahon

Landaul, France

Landévant, France

Ballymakeera

Lanrivain, France

Ballymoe

Boys Town, United States

Ballyshannon

Grenay, France

Séné, France

Ballyvourney

Trémargat, France

Balrothery

Landéan, France

Bandon

Bandon, United States

Bantry

La Crosse, United States

Pont-l'Abbé, France

Beaufort

Beaufort, United States

Blackrock

Vincennes, France

Bray

Bègles, France

Dublin, United States

Würzburg, Germany

Buncrana

Campbellsville, United States

Fréhel, France

Plévenon, France

Bundoran is a member of the Douzelage, a town twinning association of towns across the European Union, alongside with:

List of twin towns and sister cities in the Republic of Ireland

Agros, Cyprus

Altea, Spain

Asikkala, Finland

Bad Kötzting, Germany

Bellagio, Italy

Chojna, Poland

Granville, France

Holstebro, Denmark

Houffalize, Belgium

Judenburg, Austria

Kőszeg, Hungary

Marsaskala, Malta

Meerssen, Netherlands

Niederanven, Luxembourg

Oxelösund, Sweden

Preveza, Greece

Rokiškis, Lithuania

Rovinj, Croatia

Sesimbra, Portugal

Sherborne, England, United Kingdom

Sigulda, Latvia

Siret, Romania

Škofja Loka, Slovenia

Sušice, Czech Republic

Tryavna, Bulgaria

Türi, Estonia

Zvolen, Slovakia

C

Cahir

Scarborough, England, United Kingdom

Cappamore

Langonnet, France

Cappoquin

Chanat-la-Mouteyre, France

County Carlow

Davenport, United States

Carlow

Dole, France

Northwich, England, United Kingdom

Tempe, United States

Carndonagh

St. Charles, United States

Carrickmacross

Carhaix-Plouguer, France

Carrigaline

Guidel, France

Kirchseeon, Germany

Cashel is a member of the Charter of European Rural Communities, a town twinning association across the European Union, alongside with:

List of twin towns and sister cities in the Republic of Ireland