Longest time consecutively ranked tennis world number one (male)
- Who
- Roger Federer
- When
- 17 August 2008
The most consecutive weeks spent as the number one ranked male player in the world is 237 by Roger Federer (Switzerland) from 2 February 2004 to 17 August 2008. On 18 August 2008, Rafael Nadal (Spain) became world number one.