David Roos (born 29 May 1982 in Queenstown) is a Paralympian athlete from South Africa competing mainly in category F46 sprints, long and high jump events.
Roos has competed in three Paralympic Games. In the 2000 Summer Paralympics he competed in the T46 100 metres and F46 long jump as well as winning a bronze medal in the F46 high jump. Four years later in Athens in 2004 he went home without a medal after competing in the T46 200m, F46 long jump and F44/46 high jump. He had better luck in the 2008 Summer Paralympics winning a silver in the F46 long jump and competed in the T46 100 and 200 metres and the F44/46 high jump. In 2011 he won a Gold Medal at the IPC World Championships as part of the South African team for the Men's 4 x 100 metres relay.