Bethan Dainton (born 12 April 1989) is a Welsh rugby league player who plays as Loose forward for Wigan Warriors in the RFL Women's Super League. She formerly played rugby union as back row for the Wales women's national rugby union team and Harlequins Women in the Allianz's Premier 15s. She made her debut for the Wales national squad in 2016, and represented them at the 2021 Women's Six Nations Championship.

Dainton has a long-established sporting career, having represented Wales in athletics and cross country in both Union and league codes. However, she did not begin playing rugby until 2015, when she was invited to play for the Dragon's sevens team by Wales player Gemma Rowland.

Dainton then played for Bristol Bears before signing with her current club, Harlequins Women in the Premier 15s.

On 9 November 2025, she left Leeds Rhinos after three seasons.

On 19 November 2025, she had signed for Wigan Warriors in the RFL Women's Super League ahead of the 2026 season.

After joining the Dragon's sevens team in 2015, Dainton represented Wales in both legs of the Rugby Europe Championship in Russia and France, where she helped Wales secure a place in the Women's Sevens World Series Qualifiers in Dublin, Ireland.

In January 2016, she was named in Wales' 28-woman squad for the 2016 Women's Six Nations Championship, and won her first cap in the opening game against Ireland.

A serious foot injury sustained on international sevens duty kept her out of action for nearly all of the 2017/18 season, and after a lengthy period of rehab she switched from wing to back row. Dainton then returned to the international scene as she was called up for the 2021 Women's Six Nations Championship. in Wales' opening game against France in the 2021 Women's Six Nations Championship