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- A
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- Aalborg AFL
- Abbeyfeale RFC
- Abbeyknockmoy Camogie Club
- Abbeyknockmoy Hurling Club
- Abbeylara GFC
- Abbeytown Football Club
- Abingdon Hockey Club
- ABN Basket
- Acadh Bog GAA
- Achill GAA
- Achill Rovers
- ACT Rugby Union Referees Association
- Adare Camogie Club
- Adare GAA
- Adare LGFC
- Adelaide Hockey Club
- Adrigole GAA
- AFC Brandesburton
- AFC Tattenhall
- AFC Walcountians
- AFL England
- AFL Europe
- Aghabullogue GAA
- Aghada Camogie
- Aghada GAA
- Aghada LGFA
- Aghaderg Ballyvarley GAC
- Aghadrumsee GAC
- Aghamore GAA
- Aghinagh GAA
- Aghyaran St. Davog's GAC
- Ahane GAA
- Ahascragh Caltra Camogie Club
- Aherlow GAA
- Aherlow LGFA
- Aidan McAnespie GFC Boston
- Aireborough RUFC
- Aisling Gaels Chicago
- Al Ain GAA
- Al Reem Shamrocks
- Albany Rebels
- Albury Juniors Steamers
- Aldershot and Fleet RUFC
- Aldwinians RUFC
- All Blacks AFC
- All Britain Competition
- All Golds Bristol RLFC
- Allen Gaels
- Allenwood Celtic
- Allenwood GFC
- American Raptors Rugby
- Ampthill & District RUFC
- Amsterdam
- An Bru AC
- An Caisleán Glas
- An Charraig Mhór Naomh Colmcille CLG
- An Cheathru Rua
- An Ghaeltacht
- An Rinn Camogie
- An Riocht
- An Sean Phobal
- An Tóchar
- Anchor Bowls Club
- Annaclone GAA
- Annacurra Camogie Club
- Annacurra GAA
- Annaduff GAA
- Annaghdown Camogie Club
- Annaghdown GAA
- Annanough GAA
- Annascaul GAA
- Anselmians RUFC
- Antrim GAA
- Antrim Ladies
- ANU Hockey
- Aodh Ruadh
- Aquinas Grammar School, Belfast
- Arabian Celts
- Araglen Desmonds Bui
- Araglen GAA
- Ardagh GAA
- Ardclough GAA
- Ardee St Marys GFC
- Ardfert GAA Football Club
- Ardfinnan GAA
- Ardfinnan LGFA
- Ardglass GAC
- Ardley United FC
- Ardmore Cricket Club
- Ardmore GAA
- Ardmore Grange LGFC
- Ardnamurchan Camanachd Shinty
- Ardnaree Sarsfields
- Ardoyne Kickhams
- Ardrahan Camogie Club
- Ardrahan GAA
- Ardscoil Mhuire Ballinalsoe
- Ardscoil Phádraig
- Argeles Rugby
- Argideen Rangers
- Arklow Geraldines Ballymoney
- Arklow Rock Parnells
- Arklow Town FC
- Arklow United
- Arles Kilcruise
- Arles Killeen
- Arlington AFC
- Armagh LGFA
- Army Rugby League
- Arravale Rovers GAA
- Arravale Rovers Ladies F.C.
- AS Carcassonne XIII
- Ascaro Rovigo GFC
- Asdee GAA
- Asdee Rovers FC
- Ashbourne United
- Ashby RFC
- Ashford Town (Middlesex) FC
- Ashton Bears
- Ashton Under Lyne RFC
- Asian Co. Board
- Asian Gaelic Games 2023
- Asian Youth Championship
- Askam RLFC
- Askeaton Ballysteen Kilcornan
- Askeaton GAA
- Aspatria FC
- Aspatria Hornets RL
- Aspull Juniors FC
- ASRV Ascrum RFC
- Aston Villa Irish Lions Supporters Club
- Athboy Celtic FC
- Athboy Fighting Irish
- Athea GAA
- Athea United AFC
- Athenry Camogie Club
- Atherton Town F.C.
- Athgarvan GAA
- Athleague GAA
- Athy Camogie Club
- Athy GAA
- Athy Rowing and Canoeing
- Athy Town FC
- Atlanta Youth GAA
- Atlantic Technological University
- Atticall GAC
- Auckland Niue Rugby League
- Aughavas GAA
- Aughawillan GAA
- Augher St Macartan's GAC
- Aughlisnafin GAC
- Aughnamullen GFC
- Aughnasheelin GAA
- Aughrim Camogie Club
- Aughrim GAA
- Augsburg GAA
- Augusta GAA
- Austin Stacks
- Australasia GAA
- Avenir Bizanos Rugby
- Avoca GAA
- Avondale Camogie Club
- Avondale GAA
- Avonvale RFC
- Azur Gaels
- B
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- Badenoch Ladies Shinty Club
- Bagenalstown Gaels GAA Club
- Baildon RUFC
- Baile na gCleireach
- Baile na mBrannach
- Balla GAA
- Ballaghaderreen FC
- Ballaghaderreen GAA
- Ballela GAC
- Ballina Braves
- Ballina GAA Club
- Ballina Stephenites
- Ballinabrackey GAA
- Ballinacor GFC
- Ballinacurra Gaels
- Ballinagar GAA
- Ballinagh GAA
- Ballinagore GAA
- Ballinahinch GAA Club
- Ballinakill GAA
- Ballinameela GAA Waterford
- Ballinameen GAA Club
- Ballinamere GAA Club Offaly
- Ballinamore Sean O'Heslins
- Ballinascarthy GAA
- Ballinderreen GAA
- Ballinderry Shamrocks
- Ballingarry AFC
- Ballinkillen HC
- Ballinlough GFC
- Ballinrobe Community School
- Ballinrobe GAA
- Ballinrobe RFC
- Ballinrobe Town AFC
- Ballivor GFC
- Ballon GFC
- Ballyagran Camogie Club
- Ballybacon Grange GAA
- Ballybay Community College
- Ballybay GAA
- Ballyboden St. Enda's GAA Club
- Ballyboughal GFC
- Ballybricken Bohermore GAA
- Ballybrown Camogie Club
- Ballybrown GAA Club
- Ballycastle Boxing Club
- Ballycastle GAA
- Ballycastle United FC
- Ballyclough GAA
- Ballycommon GAA
- Ballycomoyle GAA
- Ballycran
- Ballycroy GAA
- Ballycumber GAA
- Ballydesmond GAA
- Ballydonoghue GAA
- Ballyduff Upper GAA
- Ballyduff Upper Ladies
- Ballyea GAA
- Ballyfin GAA
- Ballyfore GAA
- Ballygarrett GAA Wexford
- Ballygarvan GAA Club
- Ballygawley Music Festival
- Ballygiblin GAA
- Ballygunner Hurling Club
- Ballyhaise GAA
- Ballyhale Shamrocks Camogie Club
- Ballyhaunis GAA
- Ballyhea Camogie Club
- Ballyhea GAA
- Ballyhegan Davitts GAC
- Ballyheigue Athletic FC
- Ballyheigue GAA
- Ballyhogue GAA Club
- Ballyhogue LGFA
- Ballyhooly GAA
- Ballyjamesduff AFC
- Ballykelly GFC
- Ballylanders GAA
- Ballylanders LGFA
- Ballylinan GAA
- Ballylooby-Castlegrace GAA
- Ballymacarbry LGFC
- Ballymacelligott GAA
- Ballymachugh GAA
- Ballymahon GAA
- Ballymanus GAA
- Ballymartin GAA
- Ballymartle GAA
- Ballymore GAA
- Ballymore LGFA - Longford
- Ballymote GAA
- Ballynacargy GAA
- Ballynagross FC
- Ballyoulster FC
- Ballypickas GAA
- Ballyporeen GAA
- Ballyporeen LGFC
- Ballyroan Abbey GAA
- Ballysaggart GAA
- Ballyshannon Rugby
- Ballyskenagh Killavilla GAA Club
- Ballysteen GAA
- Ballyteague GFC
- Ballyvary Blue Bombers
- Baltimore Bohemians
- Baltinglass GAA
- Balyna GAA
- Balyna LGFA
- Banagher United
- Bandon GAA Club
- Bandon Ladies Gaelic Football Club
- Bank Quay Bulls
- Banner GAA Club
- Bannow-Ballymitty GAA Club
- Banteer GAA
- Banteer Lyre GAA
- Bantry Blues
- Barcelona Gaels
- Barndarrig GAA
- Barnes RFC
- Barons Health Club
- Barossa Rams Rugby Club
- Barrow Rangers
- Barrow Rangers Camogie
- Barrowhouse GAA
- Barryroe GAA
- Barwell Cricket Club
- Basel GAA
- Basingstoke Hockey Club
- Batemans Bay Boars
- Bay FC
- Bayonne Bombers RFC
- Beagh GAA
- Beale GAA
- Beann Eadair
- Beara GAA
- Beaufort GAA
- Beauly Shinty Club
- Bebington Hockey Club
- Bective GFC
- Bedford Tigers
- Belcoo GAC
- Belfast Metropolitan College
- Belgium GAA
- Bellanaleck GAC
- Belleek GAC
- Belmayne Educate Together N.S.
- Belmont GAA
- Belmont RFC
- Belturbet Rory O'Moore's
- Bennettsbridge GAA
- Bere Island
- Berkhamsted Comrades FC
- Berlin GAA
- Beverley RUFC
- Bhulf Tón CLG
- Billinge Juniors Football Club
- Birchfield RUFC
- Birmingham & Solihull RFC
- Birr GAA
- Bishops Castle & Onny Valley RFC
- Bishopstown GAA
- Blackbrook Open Age
- Blackbrook Royals
- Blackhall Gaels
- Blackheath & Elthamians Hockey Club
- Blackhill Emeralds GFC
- Blackpool RUFC
- Blackrock GAA
- Blackrock-Effin Camogie Club
- Blacks and Whites GAA
- Blarney United FC
- Bleak Hill Rovers
- Blessington GAA
- Blue Mountains Rugby Club
- Boardsmill GAA
- BOCA Juniors
- Bodyke GAA
- Bognor RFC
- Bohemian FC
- Bohemians FC Waterford
- Boherbue GAA
- Boherlahan Dualla GAA
- Bohermeen Celtic FC
- Bold Rangers JFC
- Bolton RUFC
- Bondi Gaels
- Bonmahon GAA
- Bonniconlon GAA
- Bordeaux-Blanquefort GFC
- Bornacoola
- Borris in Ossory Kilcotton
- Borris Vocational School
- Borrisokane FC
- Borrisokane GAA
- Boston GAA
- Boston Shamrocks LGFC
- Bournemouth Rugby
- Boyle GAA
- BP RUFC
- Brackaville GFC
- Brackley RUFC
- Bracknagh GAA
- Bransty Rangers
- Bray Emmets
- Bredon Star RFC
- Breska Rovers AFC
- Brian Boru Camogie Club
- Brian Boru Kinawley GFC
- Brian Boru Ladies GFC
- Brian Dillons GAA
- Brickey Rangers GAA
- Bride Rovers
- Bridge Rovers FC
- Brigade Cricket Club
- Bright GAC
- Brighton and Hove RL
- Brighton Rugby Club
- Brisbane Souths GFC
- Brisbane Youths GAA
- Bristol Aeroplane Company RFC
- Bristol Harps GAC
- Bristol Penguins Swim Club
- British Water Ski & Wakeboard
- Brittany GAA
- Broadford Camogie Club
- Broadford Hurling Club
- Brockworth Albion FC
- Brockworth RFC
- Bromsgrove Sporting FC
- Brookeborough GAC
- Brooklyn FC
- Brooklyn Shamrocks
- Brosna GAA
- Brosna Gaels
- Brother Pearse Huddersfield
- Brothers Pearse GAA London
- Broughton Park FC
- Broughton RUFC
- Broulee Dolphins
- Brownstown Camogie
- Brownstown HC
- Bruff Camogie
- Bruff GAA
- Brumbies Rugby
- Bruree GAA
- Bruton United
- Buckingham RUFC
- Buffalo Fenians
- Buffers Alley GAA
- Bugbrooke RUFC
- Bugbrooke St Michaels FC
- Bunclody Camogie Club
- Bungendore Mudchooks Rugby
- Bunninadden GAA
- Bunratty Cratloe FC
- Bunscoil an tSleibhe Dhuibh
- Bunscoil Bheann Mhadagáin
- Bunscoil Bheanna Boirche
- Burgess GAA
- Burgess Hill RFC
- Burgess Hill Town FC
- Burley RFC
- Burnley RUFC
- Burnside Rugby Club
- Burren Gaels LFC Clare
- Burrishoole
- Burtonwood Rugby League
- Bury Broncos ARLFC
- Butlersbridge GAA
- Butlerstown GAA
- Buttevant GAA / Camogie
- C
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- Caberfeidh Shinty Club
- Cabinteely Athletic Club
- Cabinteely GAA
- Cadishead Sports JFC
- Caherline GAA
- Caherlistrane GAA & LGFA
- Cahir GAA
- Cahir Park AFC
- Cainscross RFC
- Cairo Rugby
- Caisleán Ghriaire - Castlegregory
- Cal Hurling Club (UC Berkeley)
- Caledonia Bowling Club
- Calgary Chieftains
- Caltra Cuans
- Caltra GAA Galway
- Cambridge Parnells
- Cambridge University Aussie Rules Football Club
- Camogie All Stars
- Camogue Rovers
- Camolin Celtic A.F.C.
- Camp Juniors FC
- Canada GAA
- Canada Rugby League
- Canberra Royals
- Canovee GAA
- Cantabs
- Canton RFC
- Cape Cod RFC
- Cappagh
- Cappagh GAA Limerick
- Cappamore Camogie
- Cappamore GAA
- Cappataggle GAA
- Cappawhite GAA
- Cappawhite Ladies Football Club
- Cappincur GAA
- Cappoquin Camogie Club
- Cappoquin GAA Club
- Caragh GFC
- Carbury GAA
- Carey Faughs GAC
- Carlow GAA
- Carlow Town Hurling Club
- Carna Caiseal
- Carna Caiseal Womens Football
- Carnacon LGFA
- Carnew Emmets
- Carnew FC
- Carnmore GAA
- Carraig Na BhFear C.L.G.
- Carrick Aces Athletics Club
- Carrick Davins GAA
- Carrick Hurling Club
- Carrick RFC
- Carrick Sarsfields
- Carrick Swan
- Carrickcruppen GFC
- Carrickedmond GAA
- Carrickedmond Ladies
- Carrickmacross Emmets GFC
- Carrickmore Boxing Club
- Carrickshock GAA Club
- Carrig-Riverstown
- Carrigaline Camogie
- Carrigallen GAA
- Carrigtwohill GAA
- Carrigtwohill Ladies Football Club
- Carryduff GAC
- Cashel Community School
- Cashel GAA
- Cashel King Cormacs GAA
- Castle Hockey Club
- Castle United AFC
- Castlebar Town FC
- Castleblayney College
- Castleblayney Faughs
- Castleconnor GAA
- Castledaly GAA
- Castlederg GAC
- Castledermot GAA
- Castlegar AC
- Castlegar GAA
- Castlegregory Celtic FC
- Castleisland AFC
- Castlelyons Camogie
- Castlelyons GAA
- Castlemagner GAA
- Castlemartyr GAA
- Castlemitchell GFC
- Castlepollard Camogie Club
- Castlepollard Community College
- Castlepollard Hurling Club
- Castlerahan GAA
- Castlerea Celtic FC
- Castlerea St. Kevins GAA Club
- Castletown Geoghegan
- Castletown GFC
- Castletown Liam Mellows Coolgreany
- Castletown-Ballyagran GAA
- Castletownbere GAA
- Castletownroche GAA
- Caulry GAA
- Caulry LGFA
- Causeway Comprehensive School
- Causeway GAA
- Cavan GAA
- Cavan Gaels
- Cayman Islands GFC
- CBS Boxing Club Wexford
- CBS the Green
- CBS Thurles
- Ceann Creige Hurling & Camogie Club
- Celbridge GAA
- Celtic Challenge
- Celtic Cowboys
- Celtic GFC Auckland
- Central Coast GAA
- Charleston Hurling Club
- Charlestown Sarsfields
- Charleville Camogie
- Charleville GAA
- Cheadle & Gatley FC
- Cheltenham Phoenix RL
- Cheltenham Tigers
- Cheshire Schools FA
- Cheshire Vikings JFC
- Cheshunt FC
- Cheshunt FC Anniversary Range
- Chester Nomads FC
- Chester RUFC
- Chicago Celtic Youth
- Chicago Parnells
- Chicago Patriots
- Chicago Wolfetones
- Chichester High School
- Chichester RFC
- Chord Celtic
- Chorley Panthers RLFC
- Christchurch McKennas
- Christian Brothers' Primary School, Armagh
- Christophers Boston
- Churchill GAA
- Cill Chomain GAA
- Cill na Martra Lamh Lachtain
- Cincinnati CLG
- Cirencester College
- City of Derry RFC
- Civil Service GAA
- Civil Service Hurling Club
- Claddagh Gaels
- Clan Na Gael Dundalk
- Clan Na Gael Sydney
- Clan na nGael Atlanta
- Clan Na nGael Westmeath
- Clane GAA
- Clane Utd
- Clann Eireann
- Clann Mhuire CLG
- Clann na Banna
- Clann na hOman
- Clann Na nGael
- Clann na nGael Roscommon
- Clann na nGael Toronto
- Clanna Gael Waterford
- Clara GAA
- Clara GAA Kilkenny
- Clara National School - Kilkenny
- Clare GAA
- Clare Hurling New York
- Clarecastle GAA
- Claregalway GAA
- Claremorris GAA
- Clarin College Athenry
- Clarinbridge GAA
- Clashmore/Kinsalebeg GAA
- Claughaun CLG
- Claverdon RFC
- Cleator Cricket Club
- Cleator Moor ABC
- Clerihan GAA
- Clermont Gaels
- Cleveland Rovers RFC
- Cleveland St. Pat's - St. Jarlath's GAA
- CLG An Spidéal
- CLG an Tearmainn
- CLG Ard an ratha-Ardara GAA
- CLG Béal an Mhuirthead
- CLG Bearna
- CLG Beart
- CLG Carndonagh
- CLG Chill Chartha
- Clg Chloich Cheann Fhaola
- CLG Cuchulainn
- CLG Ghaoth Dobhair
- CLG Na Cealla Beaga
- CLG Na Fianna
- CLG Na Rinne
- CLG Naomh Jude
- CLG Naomh Maolmhaodhóg, Caisleán Uidhilín
- Clodiagh Gaels
- Clogher
- Clogherinkoe GFC
- Clonakenny GAA
- Clonakilty GAA
- Clonard GFC
- Clonaslee St Manmans
- Clonbullogue GAA
- Clondegad GAA
- Clondrohid GAA
- Clonea GAA
- Clonee LFC
- Clonee United
- Cloneen Hurling
- Clones GFC
- Clongeen GAA
- Clonguish GAA
- Clonkill Hurling Club
- Clonmany Shamrocks FC
- Clonmel Commercials
- Clonmel Og GAA
- Clonmel Town FC
- Clonoe O'Rahilly's
- Clonoulty Rossmore
- Clontarf GAA Club
- Clontibret O'Neills
- Cloonacool GAA
- Cloone GAA
- Clough-Ballacolla GAA Club
- Cloughbawn AFC
- Cloughbawn GAA
- Cloughduv Camogie
- Cloughduv GAA
- Clounmacon
- Cloyne GAA Cork
- Clubs
- Clyda Rovers
- Coa O Dwyers
- Coachford College
- Coastal Virginia GAA
- Cockermouth RUFC
- Coill Dubh Hurling Club
- Coláiste Abbáin
- Coláiste Aoidh Mhic Bhricne, Teileann
- Coláiste Bhaile Chláir
- Coláiste Chiarán Croom
- Coláiste Éinde
- Coláiste Eoin, Stillorgan
- Colaiste Ghlor na Mara
- Colaiste Iosaef Kilmallock
- Colaiste Mhuire Askeaton
- Coláiste Na Carraige
- Coláiste Naomh Cormac
- Colin Gaels
- Collegeland O'Rahilly's
- Colligan Emmets GAA
- Collooney Handball Club
- Colmcille GFC Longford
- Cologne Celtics GAA
- Colorado Collegiate Gaelic Club
- Colt GAA
- Columba College Killucan
- Columbia Red Branch
- Comeragh College
- Commercials
- Conahy Shamrocks GAA
- Confey GAA Kildare
- Congleton RUFC
- Conn Rangers FC
- Connacht GAA
- Connacht LGFC Boston
- Connemara Gaels GFC Boston
- Continental Youth Championship
- Convoy GAA
- Cookstown Father Rocks
- Coolaney - Mullinabreena
- Coolderry GAA
- Cooley Kickhams
- Coolkenno GAA
- Coolmeen GAA
- Coolmine SC
- Cootehill Celtic GAA
- Copmanthorpe FC
- Corach Ramblers FC
- Coralstown-Kinnegad GAA Westmeath
- Corbally United
- Cordal GAA
- Corduff Gaels GFC
- Corduff Handball Club
- Cork Camogie
- Cork GAA
- Cork GFC Boston
- Corlough GFC
- Cormac Mc Anallen GAC - Sydney Australia
- Cornwall RFU
- Corofin GAA - Clare
- Corofin GAA Club - Galway
- Corrib Celtic
- Corsham RFC
- Cortoon Shamrocks
- Cortown GFC
- Cosford Lions RFC
- Costa Gaels
- County Jerseys
- County Sligo Handball
- County Vests
- Courcey Rovers Camogie
- Courcey Rovers GAA
- Courtwood GAA
- Coventry Bears
- Craigbane
- Craobh Phadraigh GAA Sydney
- Craobh Rua Camlocha
- Craughwell Camogie Club
- Craughwell GAA
- Crawley RFC
- Crecora Camogie Club
- Crecora Manister GAA
- Creeves Celtic
- Cremartin Shamrocks
- Crettyard GAA
- Crettyard Ladies GFC
- Crewe and Nantwich RUFC
- Crewe Vagrants Hockey Club
- Crinkill GAA
- Croagh Kilfinny Camogie
- Croagh Kilfinny GAA
- Croi Ro Naofa GAA
- Cromane Ladies GFC
- Crookedwood Camogie Club
- Crookedwood Hurling Club
- Croom GAA
- Crosfields ARLFC
- Crosserlough GFC
- Crosshaven GAA Club
- Crossmolina Deel Rovers GAA
- Crotta O'Neills Hurling Club
- Crowborough Hockey Club
- Crowborough RFC
- Crumlin GAA
- Crusheen Camogie
- CSC Geneva
- Cuala Sarsfields Toronto GAA
- Cuchulainn Gaels
- Cuchulainn Hurling Club
- Culcheth Eagles RL
- Culdaff FC
- Cullen GAA
- Cullompton RFC
- Culloville Camogie Club
- Cumann an Phiarsaigh
- Cumann Micheal Breathnach
- Cumann Peil na mBan Maigh Cuilinn
- Cumann Peile Ban na bPiarsaigh
- Cumann Peile Béal Átha'n Ghaorthaidh
- Cumann Peile Mhaigh Cuilinn
- Cumann Peile Naomh Anna
- Cumann Peile Naomh Padraig
- Cumann Pheadair Naofa Warrenpoint
- Cumann Warszawa GAA
- Cumberland Netball Club
- Cumberworth FC
- Curracloe UTD
- Curraha GAA Club
- Currin GFC
- Currow GAA
- Curry GAA
- D
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- Dalton ARLFC
- Danesfort GAA
- Davidstown Courtnacuddy GAA Wexford
- Davitts Camogie
- Davitts GAA
- DCU
- De La Salle College
- De La Salle GAA and Camogie
- Deal Town FC
- Deans Youth & Ladies FC
- Dee Ranger Ladies
- Deen Celtic AFC
- Deerpark Pitch and Putt Club Killarney
- Delanys GAA
- Delaware County Gaels
- Delvin Camogie
- Delvin GAA
- Democratic Republic of Congo
- Den Haag
- Denn GFC
- Denver Gaels GAA
- Derby RFC
- Derry City FC
- Derry GAA
- Derry LGFA
- Derry Rovers AFC
- Derrylaughan Kevin Barry's GAC
- Derrylin GAC
- Derrytresk GFC
- Detroit Harps GAA
- Detroit Wolfetones
- Devenish St. Mary's GAA
- Devonport High School For Boys
- Dewsbury Celtic
- Dewsbury Moor ARLFC
- Dicksboro GAA & Camogie Club
- Didsbury Old Bedians RUFC
- Didsbury Toc H RFC
- Dingle GAA
- Distington RL
- Do it for Ollie
- Dodworth Miners
- Dohenys GAA Club
- Doire Colmcille
- Dolmen GAA County Leisurewear
- Donadea Running Club
- Donaghmore Ashbourne GAA
- Donaghmoyne GFC
- Donard-Glen GAA
- Donate4Daithi
- Doncaster Toll Bar ARLFC
- Donegal GAA
- Donegal GFC Boston
- Donegal GFC New York
- Donegal GFC Philadelphia
- Donemana Cricket Club
- Doneraile GAA Cork
- Donoughmore GAA
- Donoughmore LGFA
- Doohamlet O'Neills GFC
- Doon GAA
- Doon GAA Limerick
- Dorsey Emmetts
- Dowdallshill GFC
- Down Camogie
- Down GAA
- Down Ladies
- Dreadnots GFC
- Driffield Hockey
- Drifters RFC
- Drinagh Rangers AFC
- Droitwich Spa Football Club
- Drom and Inch GAA Club
- Dromara GAC
- Dromcollogher Broadford GAA
- Dromina GAA
- Dromtarriffe GAA
- Dromtarriffe LGFA
- Drumalee GFC
- Drumaness GAC
- Drumbaragh Emmets GFC
- Drumcliffe - Rosses Point
- Drumconrath GFC
- Drumcullen GAA
- Drumgath GAC
- Drumgoon Eire Og
- Drumhowan GAA
- Drumkeerin GAA
- Drumlane GAA
- Drumragh Sarsfields
- Drumree GAA
- Drumreilly GAA
- Drumshanbo AC
- Drumsurn St Matthews
- Drung GAA
- Duagh CLG
- Dubai Celts
- Dubai Irish
- Dublin Devils FC
- Dublin Docklands Boxing Club
- Dublin GAA
- Dublin GFC New York
- Dublin Mountain Running Club
- Dublin Swimming Club
- Duffry Rovers
- Duleek Bellewstown GFC
- Duleek FC
- Dulwich Harps GAA
- Dumfries Saints RFC
- Dunboyne Athletics Club
- Dundalk Gaels GFC
- Dundalk Gaels LGFA
- Dundalk Institute of Technology
- Dundalk St Gerard's AC
- Dundalk Young Irelands
- Dunderry GAA
- Dundrum AC
- Dunedin Connollys
- Dunfermline RFC
- Dungarvan GAA Club
- Dungourney Camogie
- Dungourney GAA
- Dunmore MacHales
- Dunsany GAA
- Dunshaughlin AC
- Dunshaughlin GAA Royal Gaels
- Dunshaughlin Royal Gaels LGFC
- Durham Robert Emmets GFC
- Durrow GAA Offaly
- Düsseldorf GFC
- Dutchess County Griffins
- E
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- Eadestown GAA
- Eagle JFC
- Easkey GAA
- East Belfast GAA
- East Celts Brisbane
- East Galway United
- East Grinstead Hockey Club
- East Grinstead RFC
- East Kilbride Gymnastics Club
- East Kilbride RFC
- East Leeds RLFC
- East London RFC
- East Retford RFC
- Eastbourne RFC
- Eastern Gaels GAA
- Eastern Gaels GAA, Meath
- Eastern Harps GAA
- Eastleigh JFC
- Eccles RFC
- Edenderry GAA
- Ederney St. Josephs GAC
- Edge Hill University