Seren Bundy-Davies (born 30 December 1994) is a Welsh track and field sprinter who competes in the 400 metres for Great Britain.

Born to Welsh parents in Greater Manchester, she grew up in the city and was educated at Wilmslow High School.

[4] Joining Trafford Athletic Club and coached by Ball, she now competes for TAC and the University of Manchester, where under a sports scholarship she is studying for a biomedical science degree.

[3] She then choose to compete at the 2015 European Athletics U23 Championships in Tallinn, Estonia,[3] finishing fourth in the individual 400m, and being part of the Great Britain and Northern Ireland team that claimed gold in the 4 × 400 m relay.

[6] However, although these performances gained her selection for the GB relay team at the 2015 World Championships in Athletics in Beijing, China, under UK Athletics policy due to competing in an international Under23 competition she was made ineligible for individual 400m selection, despite meeting the required standard.