Sian Morris (born 16 June 1965)[1] is a retired Welsh sprinter.
At the 1986 Commonwealth Games, the most successful games for Wales ever, she won a bronze medal in the 4 × 100 metres relay together with Helen Miles, Sallyanne Short and Carmen Smart.[2] She also finished seventh in the 200 metres, Wales' best ever placement in this event,[3] and competed in the 400 metres without reaching the final.
Morris also became Welsh champion in the 400 metres in 1985 and 1986.[4] Her personal best time in this event was 52.80 seconds, achieved in Finland in 1983 breaking the Welsh under 20 record, a record which is still held. She competed for Great Britain in the European junior championships in 1983. .[5]