Gregory "Greg" Ian Ball, OAM[1] (born 29 May 1974)[2] is an Australian Paralympic cyclist.

[4] At the 2008 Beijing Games, he won a bronze medal in the Men's 1 km Time Trial LC3–4 event.

[6] He was provisionally suspended on 9 March 2011, and on 26 October 2011, the Australian Sports Anti-Doping Authority (ASADA) announced that it had acknowledged the two-year ban imposed on Ball by Cycling Australia, backdated to the date of the provisional suspension.

[7] He was also ordered to pay back $27,500 in grants to the Australian Sports Commission, and was stripped of his February 2011 world record.

In his submission to ASADA, he said that he had been suffering depression for the previous twelve months and admitted that he had taken "up to four tablets, the name and exact constituents of which he did not know at the time (and still does not know), obtained from a close friend"; he said that he believed the tablets were vitamins that would help him to recover from depression.