Usain Bolt is the only man to win Olympic 100-metre and 200-metre titles at three consecutive Olympics.
Bolt achieved this extraordinary double at Beijing 2008, London 2012 and Rio de Janeiro 2016. At each of those Games he won both individual sprint titles, making him the first athlete to complete the feat three times. His Olympic sprint dominance helped establish him as one of the most recognizable athletes in modern sports history.
The achievement is sometimes confused with winning three Olympic titles in the same event. Bolt did that too: he won the Olympic 100 metres three times and the Olympic 200 metres three times. However, the wording of this question refers specifically to winning both events at three successive Games.
Bolt also won Olympic relay gold medals with Jamaica, although the country's 2008 4 × 100-metre relay title was later stripped after teammate Nesta Carter's doping violation. That ruling did not change Bolt's individual 100-metre and 200-metre record.