Educated at St. Peter's College, Tom Harley played most of his early football for the school and for Walkerville juniors.
In 1996 he played 11 games for the Norwood under 19s and 14 for the Reserves. He also represented South Australia in the under 18s National Carnival and was named in the All-Australian team.
Harley was selected by Port Adelaide Power in its inaugural squad for season 1997.
During 1997 he made his league debut for the Redlegs and played six senior and 13 reserves games. He played in the 1997 SANFL finals series but missed out on Grand Final league selection. However, he did play in the Reserves Grand Final and was high in Norwood's best players in the one point loss to Port Adelaide.
In 1998 he played 15 League and 7 Reserves games for the Redlegs and made his AFL debut for Port Adelaide. He was also a member of Norwood's 1998 Reserves premiership team.
Unable to consolidate his spot in the Port Power side, he was subsequently traded to Geelong in the 1998 AFL national draft, having played only one senior game for Port.
Harley went on to play 197 games for Geelong, captaining the Cats to two flags in 2007 and 2009.
In 2008 the strongly-built defender made the AFL All-Australian team.
Harley joined the Sydney Swans in November 2014 as General Manager - Football and in 2019 was appointed CEO of the club.
R Cialini August 2021