See main article: 2006 Davis Cup.
| Date: | 10 February – 3 December |
| Edition: | 26th |
| Main Name: | Davis Cup |
The World Group was the highest level of Davis Cup competition in 2006. 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 2007.