Sharlene Mawdsley (born 10 August 1998) is an Irish athlete.
She competed in the women's 400 metres event at the 2021 European Athletics Indoor Championships.
In August 2023, she competed in the World Athletics Championships 400 metres semi-finals, and finals of both the women's and mixed 4 × 400 metres relays, running six races in total over nine days.
In March 2024, she competed in the women's 400 metres at the World Athletics Indoor Championships, initially getting through to the final on merit, before being disqualified for obstruction in the semis.
She then ran as part of the Irish 4x400m relay team which reached the final in Glasgow.
