Darren Edward Clark (born 6 September 1965 in Sydney, New South Wales) is an Australian retired sprinter who specialised in the 400 metres.
His personal best time of 44.38 seconds, achieved at the 1988 Seoul Olympics, is the current Oceanian record.
Clark also co-holds the Oceanian record in 4 x 400 metres relay with 2:59.70 minutes, established with teammates Bruce Frayne, Gary Minihan and Rick Mitchell at the 1984 Los Angeles Olympics.
Clark took a break from the track in 1991, playing a season in the New South Wales Rugby League for the Balmain Tigers.
He returned to the track in 1992 and was selected for the Barcelona Olympic team, but was forced to withdraw due to an Achilles tendon injury.