Jade Edmistone (born 6 February 1982 in Brisbane, Queensland) is an Australian breaststroke swimmer, who is the former world-record holder in the 50 m breaststroke at both short and long course formats of the event. She is coached by Stephan Widmar at the Commercial Swimming Club in Brisbane. She stands at 183 cm and weighs 71 kg. She was an Australian Institute of Sport scholarship holder. 
In 2004, Edmistone emerged as an international calibre swimmer, at the Telstra Australian Short Course Championships. She gave three powerful displays, when her three swims in the heats, semifinals and final produced a Commonwealth record, an equalling of the world record and a new world record for the 50 m breaststroke (29.90s).
She followed that with a personal best time to finish second to Olympic silver medallist Brooke Hanson in the 100 m breaststroke final to qualify for her second event at the FINA Short Course World Championships in Indianapolis, Indiana. At the World Championships, Edmistone won the silver medal in the 50 m breaststroke, just 0.01 s behind Hanson. She also took home silver in the 100m breaststroke, also behind Hanson.
Edmistone qualified for her first long course international team in March 2005, when she won the 50 m breaststroke at the 2005 Australian Swimming Championships in Sydney. She had set national records twice on her way to the final. She won her first world title by breaking the world record in the 50 m breaststroke at the 2005 World Aquatics Championships in Montreal, Canada in July 2005, setting a time of 30.45 s.
At the 2006 Commonwealth Games Trials in February 2006 in Melbourne, Edmistone set a new personal best in the 100 m breaststroke to become the 2nd fastest Australian of all-time, and further lowered her own world record in the 50 metres breaststroke to 30.31s. It was the first world record to be set at the new pool built for the 2006 Commonwealth Games.
She claimed silver in both the 50 m and 100 m breaststroke at the 2006 Commonwealth Games, trailing Leisel Jones in both cases. Then followed up at the 2006 FINA Short Course World Championships in Shanghai with Gold in the 50 m breaststroke, bronze in the 100 m breaststroke and joined Tayliah Zimmer, Jessicah Schipper and Libby Lenton in the 4x100 m medley relay to take gold and set a new world record, beating the previous record by 3 seconds.
Edmistone married fellow Australian swim team member Andrew Richards on 22 April 2006 in a ceremony held at Lyrebird Ridge Organic Winery, a property owned and managed by her aunt and uncle in the beautiful Shoalhaven. Edmistone is also currently completing a university degree.
- 50 m Breaststroke: 30.31 s - (Former world record, set in Melbourne, Australia, January 2006)
- 100 m Breaststroke: 1:07.03 s - 2nd fastest Australian all-time.
- 200 m Breaststroke - 2:32.60 s
- 50 m Breaststroke - 29.90 s - (Former world record, set in Brisbane, Australia, September 2004)
- 100 m Breaststroke - 1:05.18 s- 2nd Fastest Australian of all-time
- 200 m Breaststroke - 2:25.80 s