Adam James Hansen (born 11 May 1981) is an Australian Ironman triathlete and former professional road bicycle racer, who rode professionally in the latter between 2007 and 2020, and also from 2022 to 2023. During his cycling career, he took five victories – including Grand Tour stage wins at the 2013 Giro d'Italia and the 2014 Vuelta a España, which came during a record run of twenty consecutive Grand Tour starts, and finishes, from 2011 to 2018.

In March 2023, he was elected president of the Cyclistes Professionnels Associés (CPA), an international non-profit association that safeguards the interests of the professional riders, becoming the first CPA president born outside Europe.