Sam Willoughby (born 15 August 1991 in Bedford Park, South Australia) is an Australian former BMX racing cyclist.

He stayed at the home of fellow cyclists until he earned enough money from racing to afford a room in a motel.

[2][3] In 2012, he won the Australian Institute of Sport Junior Athlete of the Year Award.

In the men's BMX at the 2016 Summer Olympics, Willoughby won his semi-final, but finished sixth in the final.

[5] On 10 September 2016, Willoughby was declared a tetraplegic after a training run crash at Chula Vista BMX track.