Guðrún Arnardóttir (born 24 September 1971) is a retired Icelandic athlete who specialized in the 400 metres hurdles. Her biggest success was reaching the final at the 2000 Olympic Games in Sydney where she finished seventh. In 2022, she was inducted in to the National Olympic and Sports Association of Iceland Hall of Fame.
As of Sep 23, 2026: 400 m hurdles 54.37 (#126 all-time), 50 Metres Hurdles 6.89, 2000 season best 54.37 (Aug 5, 2000, Crystal Palace, London (GBR)) · Last competition: The XXVII Olympic Games, Sep 27, 2000, 54.63 · National record (400 m) · 54 years old