Antonia Louise Antoniazzi (born 5 October 1971) was elected as the MP for Gower in 2017.
Antoniazzi contested the regional seat of Mid and West Wales in the 2016 National Assembly for Wales election. She then stood for parliament at the 2017 General Election for the Gower constituency, which was held at the time by the Conservative's Byron Davies with a 27-vote majority, making it the UK's most marginal seat. She was successful, turning the seat Labour by gaining a 3,269 majority. On her election, she stated that she intended to be a strong constituency MP, and that "Gower is and always will be my first priority".
Antoniazzi delivered her maiden speech on Thursday 29 June 2017. In her speech she outlined how Italian immigration had shaped cafe culture in Wales and the UK.