Sandy Ryan (born 16 September 1993) is an English professional boxer who is a two-weight world champion. She has held the WBC female light-welterweight title since February 2026 and was WBO female welterweight title holder from April 2023 until September 2024.

On her senior championship debut in 2014, she won a World Championship silver medal.

Representing England, Ryan won a gold medal at the 2018 Commonwealth Games in Australia beating Rosie Eccles from Wales by split decision (3:2) in the welterweight final.

In 2019 Ryan was selected to compete at the World Championships in Ulan-Ude, Russia, where she lost by split decision (4:1) to Christina Desmond in the round of 32.

In 2021 it was confirmed that Ryan has agreed terms to turn professional with Matchroom Sport. She made her pro-debut on 31 July 2021 defeating Kirstie Bavington on points in a six-round contest held at Matchroom HQ Garden in Brentwood, England.

On April 22, 2023 at Cardiff International Arena in Cardiff, Wales, Ryan defeated Marie Pier Houle by unanimous decision and earned the vacant WBO welterweight title.

On September 23, 2023 at Caribe Royale in Orlando, Florida, Ryan faced Jessica McCaskill in the welterweight championship unification. The fight ended in a split draw.

On 23 March 2024 in Sheffield, England, Ryan defeated Terri Harper via fourth-round retirement and retained her WBO welterweight title.