Genevieve Gregson (née LaCaze; born 4 August 1989) is an Australian athletics competitor who specialized in the 3000 metre steeplechase but for the 2024 Olympics qualified for and ran for Australia in the marathon.

[4] After news of her too-late qualification time broke, she became a trending topic on Twitter under the hashtags #letlacazerun and #genlacaze as people indicated their support for her to represent Australia at the 2012 Summer Olympics.

[7][12] Australian Olympic Committee President John Coates intervened asking Athletics Australia to include her on the squad.

[5] LaCaze was Australia's only female runner in the 3000 metre steeplechase event as no other Australian woman set an Olympic A-Qualifying time.

[13] LaCaze had a disappointing 2013 after breaking her ankle at the Birmingham Diamond League event in the buildup to the Moscow World Championships, for which she had qualified.

[10] This injury made LaCaze call time on life in Florida where she had carried on living and training since graduating college in 2012 after the Olympics.

Since moving to Melbourne LaCaze has begun a relationship with fellow distance runner Ryan Gregson, whom she first met in 2007 under rather amusing circumstances.

At the games LaCaze raced well in a lead group of five, but succumbed to the last lap pace and finished 5th in a personal best time of 9:37:04.

[10] During the closing ceremony of the Glasgow 2014 Commonwealth Games, LaCaze famously and to much humour got on stage during Kylie Minogue's performance of 'The Loco-Motion'.

[10] LaCaze finished in 5th place at the 2018 Commonwealth Games in her home region of the Gold Coast, Australia.