Deane Anthony Pieters (born 30 July 1968) is a freestyle swimmer who competed for Australia at the 1992 Summer Olympics in Barcelona, Spain.

There he was disqualified in the final of the men's 4×200-metre freestyle relay team, alongside Kieren Perkins, Duncan Armstrong and Ian Brown.

[2][3][4] At the 1993 Pan Pacific Swimming Championships in Kobe, Japan, Pieters again won a silver medal in the 4x200-metre freestyle.

[5][6][7] Pieters is general manager of business strategy and growth for the West Coast Eagles football club and formerly held the position of general manager marketing from 2001 to 2010, spanning a period of drug controversies centred on the Eagles' playing list.

[8] In 2010 at the age of 41, Pieters won the Rottnest Channel Swim in a time of 4 hours, 41 minutes and 35 seconds, going one better from his 2009 result.