South African road racing cyclist
This article needs more links to other articles. (March 2022)
She competed at the 2021 UCI Road World Championships, in the women's time trial event and women's road race event. 
- "EWN On The Couch: Hayley Preen speaks about being a multi-sport athlete". 702. Retrieved 2022-03-01.
- "Hayley Preen | Biography, statistics & news – In the Bunch". inthebunch.co.za. Retrieved 2022-03-01.
- "Hayley Preen". .procyclingstats.com.
- "Hayley Preen and Marc Pritzen crowned 2021 South African National Road Champs". Bike Hub. Retrieved 2022-03-01.