Diana Clare Davies (née Elliott; born 7 May 1961) is a retired female high jumper from Great Britain, born in Catworth. Her personal best of 1.95 metres set on 26 June 1982, at a meet in Oslo, Norway, stood as the UK national record until 2014. She competed at two Olympic Games, reaching the final on both occasions. In Los Angeles 1984, she finished in 9th place (1.88 m), while in Seoul 1988, she finished 8th (1.90m).
As a 17-year-old, Diana Elliott finished second at the 1978 AAAs National Championships with 1.76 metres. She would also be runner-up at the 1980 AAAs Indoors and the 1981 AAAs Outdoors.
Her breakthrough year came in 1982 when she broke the UK records, both indoors and outdoors. Indoors she broke Ann-Marie Cording's record of 1.91 m with a clearance of 1.94 to finish fifth at the European Indoor Championships in Milan. She then set a new outdoor mark of 1.95 m in Oslo, to add one centimetre to Louise Miller's previous record. The indoor record would survive for 15 years. Debbie Marti (1991) and Jo Jennings (1993) both equalled it, before Marti cleared 1.95 in 1997. This remained the record until Katarina Johnson-Thompson cleared 1.96 m in 2014. The outdoor record stood for 32 years. It was equalled by both Susan Jones (2001) and Jessica Ennis (2007), before Isobel Pooley broke it with a clearance of 1.96 m in August 2014.
She won her first national titles in 1984, winning all three, AAAs Indoor, UK Championship and AAAs Outdoor. At her first Olympic Games in Los Angeles, she cleared 1.90 in the qualification round, before finishing equal ninth in the final with 1.88.
In 1986, now Diana Davies, she again won all three national titles and finished fourth at two major Championships. At the European Indoor Championships in Madrid she was fourth with 1.90 m. Then at the Commonwealth Games in Edinburgh, in one of the highest quality Commonwealth high jump competitions, she again found 1.90 m not enough for a medal, losing out on countback to the Northern Irish pair, Sharon McPeake and Janet Boyle. The winner was Australia's Christine Stanton with 1.92 m. At the European Championships in Stuttgart, both McPeake and Boyle failed to reach the final, leaving Davies as the only UK finalist, placing eighth with 1.87 m.