Gemma Hallett (born 24 August 1981) is a Welsh rugby union player who has played second row and number 8, earning 35 caps for Wales. Hallett started her international career making her appearance in the Welsh Students squad in April 2004 coached by Nadine Griffiths. Hallett along with scrum half Laura Prosser were selected to join the Welsh Development team where they played in fixtures against England A, both Hallett and Prosser were late call up replacements for the injured Mellissa Berry and Beth Gallacher for the national squad tour of South Africa in the summer of 2004. Hallett came off the bench to earn her first taste of senior international rugby to face Eastern Province.