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Iwan Rees  BA, MPhil, PhD, FHEA

Dr Iwan Rees BA, MPhil, PhD, FHEA

Senior Lecturer and Director of the Cardiff Centre for Welsh American Studies

School of Welsh

Welsh speaking
Available for postgraduate supervision


My research interests encompass a number of interrelated linguistic fields, including:

  • Geographical and social dialectology;
  • Phonetic and phonological variation and change;
  • Language pedagogy (in Wales and Patagonia especially);
  • Welsh grammar (including regional varieties);
  • The historical development of Welsh and its scholarship.

I joined the School of Welsh in 2012 when I was appointed a Research Associate on a project which examined the acquisition of Welsh as a second language in the Welsh for Adults (WfA) sector. I have subsequently been a Lecturer at the School since 2014 and am currently the Director of the Cardiff Centre for Welsh American Studies.

Before joining Cardiff University, I was awarded an AHRC scholarship which allowed me to complete my doctoral thesis at Aberystwyth University on aspects of phonological variation and change in two distinctive dialects of mid Wales.

The phenomenon of dialect contact, i.e. the linguistic outcomes of dialect mixing, has always been of great interest to me. In addition to my articles and resources on the nature of the linguistic transitions found in mid Wales between the two main varieties of Welsh, namely Northern Welsh and Southern Welsh, I am also working on an ongoing project which focuses on the understudied variety of Welsh that is spoken in Patagonia, Argentina from a historical and synchronic perspective. Another related field of interest of mine is the development of new dialects of Welsh in Wales and the role that the education system plays in their formation.






  • Morris, J., Rees, I. W. and Prys, M. 2020. Amrywio. In: Cooper, S. and Arman, L. eds. Cyflwyniad i Ieithyddiaeth. Caerfyrddin: Y Coleg Cymraeg Cenedlaethol, pp. 139-180.











Book sections




Linguistic variation and change in Patagonian Welsh

Following initial field trips (made possible by Banco Santander and the Coleg Cymraeg Cenedlaethol) in Chubut Province, Argentina, I am currently working on a project which focuses on the understudied variety of Patagonian Welsh from a historical and synchronic perspective.

One of the main aims of this project is to establish how exactly a new dialect of Welsh was formed in South America as a result of contact between different dialect varieties from Wales, and thereby challenge previous interpretations of new dialect formation processes in other colonial varieties around the globe. Another objective is to investigate some of the outcomes of language contact, i.e. the Spanish influence on this Welsh variety, with particular emphasis on the implications of current cross-generational changes for the pedagogical practices and resources of the British Council’s Welsh Language Project in Chubut Province.

Introducing the dialects of Welsh to actors and scriptwriters

Having been awarded a grant from the Coleg Cymraeg Cenedlaethol, I have created an educational resource, aimed at familiarising actors and scriptwriters with the various dialects of Welsh. Cyflwyno Tafodieithoedd y Gymraeg: Canllawiau i Actorion a Sgriptwyr contains several audio and audio-visual clips (on the Coleg’s website), in addition to detailed commentaries on several varieties of spoken Welsh. This resource has led to invitations to collaborate with numerous non-academic stakeholders on various projects, e.g. Theatr Genedlaethol Cymru (the Welsh-language National Theatre), BBC Cymru and the National Centre for Learning Welsh, as well as several popular fiction authors. I have also been invited to lead several master classes alongside the coach and award-winning actress Rhian Morgan.

The acquisition of Welsh as a second language

Having led a project on the acquisition of Welsh as a second language, I recently published an article (with Dr Jonathan Morris) on tutors’ perspectives of learners’ pronunciation difficulties in the Welsh for Adults sector. Several of this article’s recommendations are currently being implemented by the newly established National Centre for Learning Welsh.


BA Welsh

    • CY1600 Iaith ac Ystyr (Leader)
    • CY1602 Y Gymraeg yn y Gymru Gyfoes
    • CY2450/CY3450 Tafodieitheg (Leader)
    • CY3750 Cyfieithu Proffesiynol (Leader)
    • CY2700/CY3700 Sgriptio
    • CY3900 Blas ar Ymchwil
    • CY3905 Ymchwilio Estynedig

MA Welsh and Celtic Studies

    • CYD400 Academic and Professional Research
    • CYD401 Special Subject 1
    • CYD402 Special Subject 2
    • CYD403 Extended Research Project


Professional memberships

  • Member of British Council Cymru’s Welsh Language Project Board
  • Member of the National Centre for Learning Welsh’s Pronunciation Project Forum
  • Fellow of the Higher Education Academy

Current Departmental Service

  • Director of the Cardiff Centre for Welsh American Studies
  • Chair of the Examination Board and Complaints Officer
  • Director of Admissions and Recruitment
  • Library Officer


Current supervision

Jack Pulman-slater

Mr Jack Pulman-slater

Research student