Revd Dr Gareth Leyshon

Hello! I’m a Catholic Priest of the Archdiocese of Cardiff, since 5 January 2023 parish priest of the 4 churches comprising Our Lady of the Valleys.

Between 2012 and 2018, I was responsible for Evangelisation in the Archdiocese of Cardiff (South East Wales and Herefordshire), and from scratch built up a network of 150 lay Catholics keen to share faith across the length and breadth of the Archdiocese. I also started working parties focusing on outreach through our Cathedral centre, the Cornerstone, and on wider issues of evangelisation across the diocese. These projects continued, under new leadership, when I was released to spend 4 years ministering beyond South Wales.


I became an Associate Member of the  Sion Catholic Community for Evangelism on 3 September 2017, and was in full time ministry with Sion Community from 8 January 2019 until Christmas 2022.

From 19 September 2013 until 30 December 2018, I was parish priest of St Philip Evans Parish in Cardiff.

From 25 September 2012 until 19 September 2013, I was parish priest of St John Lloyd Parish in Cardiff.

Until 25 September 2012, I was priest-in-charge of St Dyfrig’s Parish in Pontypridd.

On 29 February 2012, I stepped down as Chair of the Cardiff Archdiocesan Service Team for the Catholic Charismatic Renewal in Wales, a post I held since July 2007.


In September 1999, I entered St John’s Seminary, sponsored by the Archdiocese of Cardiff to train for the Roman Catholic Priesthood. I was ordained to the priesthood on Saturday 5 May 2007. Prior to entering seminary, I spent four years researching dust in distant galaxies, obtaining a PhD in Astrophysics from the University of Wales via Cardiff University.

Originally, I come from Llanelli, where I lived until entering Oxford University in 1991, studying Physics at Keble College.

You will find me on the web at YouTube, FlickrTwitter, Facebook and LinkedIn. I have been a regular contributor to the Society of St Gregory webforum and a contributor to Wikipedia but have less time to be active there now. I have accounts on Instagram and Pinterest but don’t post regularly there. You are welcome to follow some of my past personal news.