| 2008 Davis Cup World Group | |
|---|---|
| Date | 8 February – 23 November |
| Edition | 28th |
| Champions | |
 Spain | |
The World Group was the highest level of Davis Cup competition in 2008. The first-round losers went into the Davis Cup World Group play-offs, and the winners progress to the quarterfinals. The quarterfinalists were guaranteed a World Group spot for 2009.