I love names from these countries and I also would like to make a nod to my heritage, what are your favourite Welsh, Scottish and/or Irish names? If able, please also provide the pronunciations.
Thank you in advance!
Welsh - Girls: [name]Anwen[/name] and [name]Ceri[/name] (keh-ree)
Boys: Hywel (how-l)
Irish - Girls: [name]Saoirse[/name] (sair-sha/seer-sha), [name]Clodagh[/name] (kloh-da), [name]Bridie[/name]
Boys: [name]Ruari[/name] (rory) [name]Lochlan[/name] (lock-lun)
Scottish - Girls: [name]Eilidh[/name] (ay-lee) [name]Elspeth[/name]
Boys: [name]Alasdair[/name], [name]Malcolm[/name]
Thank you renrose! I love [name]Anwen[/name], [name]Saoirse[/name], [name]Clodagh[/name], [name]Lochlan[/name], [name]Eilidh[/name], [name]Elspeth[/name] and [name]Alasdair[/name]. 
Welsh Girls:
[name]Angharad[/name] (ang-HA-rad)
[name]Ceridwen[/name] (keh-rid-wen)
Eirawen (AY-ra-wen)
[name]Eirian[/name] (AY-ree-an)
[name]Gwendolen[/name] ([name]GWEN[/name]-duh-luhn)
Gwenllian (gwen-LHEE-an)
[name]Gwyneira[/name] (gwin-AY-ra)
[name]Myfanwy[/name] (muh-[name]VAN[/name]-wee)
[name]Nesta[/name] (NES-tuh)
[name]Olwen[/name] (ol-wen)
[name]Rhiannon[/name] (ree-AN-non)
Tesni (TES-nee)
Welsh Boys:
[name]Bran[/name] (BRAHN)
[name]Gawain[/name] (guh-WAYN)
Hefeydd (hev-AYD)
[name]Idris[/name] (id-ris)
[name]Meredith[/name] (ME-ruh-dith)
Scottish Girls:
[name]Ailsa[/name] (AYL-suh)
[name]Fionnuala[/name] (fuhn-OO-luh)
[name]Isobel[/name] (IZ-uh-bel)
Scottish Boys:
[name]Hamish[/name] (HAY-mish)
[name]Innes[/name] (IN-uhs)
Irish Girls:
[name]Aisling[/name] ([name]ASH[/name]-leen)
[name]Deirdre[/name] (DEER-druh)
[name]Orla[/name] (AWR-luh)
Róisín (roe-[name]SHEEN[/name])
Siofra (SHEE-fruh)
Irish Boys:
[name]Ciar[/name]án ([name]KEER[/name]-awn)
[name]Cillian[/name] (KIL-een)
[name]Fionn[/name] (FYON)
Oisín (OSH-een)
[name]Rory[/name] (RAW-ree)
Now I’m remembering sitting on the train going to my Welsh friend’s house and hearing the train lady saying Cwmbran ‘coom-BRAHN’, lol.
I’m not sure about Welsh and Scottish, but my all time favourite Irish names are [name]Finnegan[/name] and [name]Caoimhe[/name] (Kee-vah), [name]Finnegan[/name] is on my list but I think [name]Caoimhe[/name] would bring too much hassel for a little English girl. I went to school with a [name]Mairead[/name] and she recieved enough problems.
Some brilliant ones already mentioned, but I’d add:
[name]Scot[/name] Boys: [name]Domhnall[/name] ([name]DOE[/name]-nul), [name]Angus[/name]
[name]Scot[/name] Girls: [name]Catriona[/name] (cat-TREE-nuh)
Irish Boys: [name]Seamus[/name] ([name]SHAY[/name]-mus), [name]Cian[/name] (KEE-un)
Welsh Boys: Iowan ([name]YO[/name]-wun), [name]Griffith[/name], [name]Ianto[/name] ([name]YAN[/name]-toe)
Welsh Girls: [name]Efa[/name], [name]Fflur[/name]
I love [name]Rory[/name] but I’ve always pronounced it slightly different to [name]Ruaridh[/name].
[name]Welch[/name]
[name]Rhys[/name] and [name]Evan[/name] for boys
[name]Gwendolyn[/name] and [name]Anwen[/name] for girls
Scottish
[name]Duncan[/name] and [name]Gavin[/name] for boys
[name]Fenella[/name] and [name]Elspeth[/name] for girls
Irish
[name]Declan[/name] and [name]Doyle[/name] for boys
[name]Fiona[/name] and [name]Maire[/name] for girls
Welsh: [name]Seren[/name] and [name]Elowen[/name]
Irish: [name]Niamh[/name], [name]Saoirse[/name]
Scottish: [name]Elspeth[/name], [name]Alasdair[/name], [name]Ailsa[/name]
[name]Elowen[/name] is Cornish, not Welsh 
[name]Caoimhe[/name] and [name]Siobhan[/name]
Ack, you’re right! I tend to lump the -wen names together. Sorry!
Irish
Girls: [name]Niamh[/name] and [name]Aoife[/name]
Boys: [name]Ciaran[/name] and [name]Cillian[/name]
Scottish
Girls: [name]Ailsa[/name] and [name]Maisie[/name]
Boys: [name]Fraser[/name] and [name]Calum[/name]
Welsh
Girls: [name]Ffion[/name] and [name]Carys[/name]
Boys: [name]Bryn[/name] and [name]Owen[/name]
Welsh:
Osian, [name]Dafydd[/name], Gethin.
Aderyn, Eirlys, [name]Carys[/name], [name]Anwen[/name], Generys.
Scottish:
Hendry.
[name]Isla[/name], Gavina, [name]Eilidh[/name].
Irish:
[name]Finnbar[/name], [name]Cillian[/name], [name]Flynn[/name], [name]Seamus[/name].
[name]Saoirse[/name], [name]Fiona[/name], [name]Siobhan[/name], [name]Nora[/name], [name]Rois[/name].
Thank you for all of these wonderful suggestions! I’m loving [name]Angharad[/name], Eirawen, [name]Gwendolen[/name], [name]Gwyneira[/name], [name]Myfanwy[/name], [name]Olwen[/name], [name]Bran[/name], [name]Fionnuala[/name], [name]Isobel[/name], [name]Orla[/name], Siofra, [name]Cillian[/name], [name]Finnegan[/name], [name]Ianto[/name], [name]Efa[/name], [name]Elowen[/name] (I also love Cornish names!), [name]Carys[/name], [name]Owen[/name], [name]Isla[/name] (my absolute favourite, despite it’s popularity) and [name]Nora[/name]!
[name]Bronwen[/name]
[name]Eithne[/name] (en-ya)
[name]Eilidh[/name] (ay-lee)
[name]Carys[/name]
”ine (an-ya)
Brigh (bree)
[name]Ide[/name] (ee-da)
[name]Aoibhe[/name] (ee-va)
[name]Aeronwy[/name] (ayr-on-wee)
Eirwen (ayr-wen)
Eirianedd (ayr-yahn-eth)
[name]Gwyneira[/name] (gwin-eye-ra)
[name]Malcolm[/name]
[name]Mackenzie[/name]
[name]Cael[/name]
[name]Ewan[/name]
[name]Owen[/name]
[name]Duncan[/name]
[name]Eamon[/name]
[name]Angus[/name]
[name]Niall[/name]
[name]Brian[/name]
[name]Bran[/name]
[name]Emrys[/name]
Gethin
[name]Gawain[/name]
[name]Rhys[/name]
[name]Taliesin[/name] (tal-ee-es-in)
Thank you mclola! I love [name]Eithne[/name], [name]Aine[/name], [name]Ide[/name], [name]Eamon[/name], [name]Angus[/name], [name]Emrys[/name] and [name]Taliesin[/name].
I’m a Welshy living overseas = ) and love :
Girls
[name]Gwyneth[/name]/ Gwynaeth - bias obviously
[name]Gwyneira[/name] - love this but chose Gwynaeth over it due to it’s meaning
[name]Guinevere[/name] - is actually from the welsh Gwenhyfar- again was almost a possibilty for mn foe us but Gwynaeth won over
[name]Arianwen[/name]- gorgeous name and stunning meaning
[name]Bronwyn[/name] - my [name]MIL[/name]'s name , although weirdly she’s not actually Welsh
Enfys- [name]Rainbow[/name]
[name]Ffion[/name]
[name]Mairwen[/name]
[name]Aeronwy[/name]
Boys
[name]Dafydd[/name]
Arwyn- meaning handsome
Carwyn- meaning blessed or loved
[name]Emlyn[/name]- loved this as a child and read '[name]Emlyn[/name]‘s moon’
[name]Gawain[/name]
Gwynfor - my grandad’s name
[name]Ieuan[/name]
[name]Ioan[/name]
[name]Llewellyn[/name]- although the double letter sounds are often hard for non welshies to pronounce
Meirion
[name]Rhodri[/name]