Luke Justin Roberts (born 25 January 1977) is a sports director and former Australian racing cyclist specialising in both track cycling and road bicycle racing.

In 2003 he was awarded the title of Australian Male Track Cyclist of the Year.

He improved his performance 4 years later in Athens, coming 5th in the Individual Pursuit.

As part of the Australian pursuit team with Graeme Brown, Brett Lancaster, Bradley McGee, (Peter Dawson and Stephen Wooldridge were also part of the team), Roberts won gold and set a new world record for the 4000m Team Pursuit of 3mins 56.610secs,[4] breaking their previous world record set in Stuttgart in 2003.

After riding with UniSA in the 2011 Tour Down Under,[6] Roberts signed with Saxo Bank–SunGard, a continuation of the squad he was with from 2005 to 2007, for the remainder of the season.