Hannah Southwell (born 4 March 1999) is an Australian professional rugby league footballer who currently captains the Newcastle Knights in the NRL Women's Premiership.

Born in Newcastle, New South Wales, Southwell played junior rugby league for the Kotara Bears.

[6] During the 2015–16 W-League season, Southwell made 12 appearances for Newcastle and helped the team finish in sixth place with a 3–5–4 record.

[7][8] In January 2016, Southwell earned a call-up to training camp for the Australia women's national soccer team.

[11] In 2018, Southwell returned to rugby league, joining CRL Newcastle in the NSWRL Women's Premiership.

[26] Southwell was a member of the Sydney Roosters team that won the premiership in the postponed 2021 NRL Women's season, playing in all seven matches including the Grand Final victory on 10 April 2022.

[29] On 1 June, the Newcastle Knights announced that local junior Southwell had signed to play for the club in the 2022 season, alongside younger sister Jesse.