Gregory James McFadden (born 28 August 1964) is an Australian water polo coach and former player.
[4] McFadden had a water polo scholarship at the Australian Institute of Sport (AIS) for two years where he was coached by Charles Turner.
[4] He was a member of the Australia men's national water polo team and represented the country at the 1992 Summer Olympics.
[4] In 2001, McFadden moved back to Canberra to become AIS Men's Water Polo Head Coach.
[6][7] McFadden was the head coach of the Australia women's national water polo team from 2005 to 2016.
[8] On 13 August 2008, after his team drew 7–7 in a match against Hungary, he had a melt down at the media conference regarding the match officiating that saw Melissa Rippon removed from the game when Australia was ahead by a goal only for Hungary to tie things up by a goal in the remaining 16 seconds.