Anna Rhiannon McMorrin[2] (born 23 September 1971) is a Welsh politician serving as the Member of Parliament (MP) for Cardiff North since 2017.

In 2008, she joined the Welsh Government as an appointed Specialist Advisor,[8] working with Ministers including Jane Hutt AM, John Griffiths AM and Alun Davies AM.

In February 2016 she unsuccessfully sought the Labour nomination for Merthyr Tydfil and Rhymney Assembly constituency, losing out to Dawn Bowden.

[11] Shortly after becoming an MP, McMorrin asked leader of the House of Commons, Andrea Leadsom, for an urgent debate about the 1,100 Tesco job losses in Cardiff North.

[12] McMorrin was successful in gaining an urgent debate in the House of Commons on 19 July 2017, and in her speech said she wished to "highlight the way in which Tesco has acted; secondly, describe the human impact of these actions; and finally, explore how we respond to these things and the next steps.".

Leader Jeremy Corbyn had instructed his MPs to abstain in a vote which Britain would remain in the single market by joining the European Economic Area (EEA).