See main article: 2010 Davis Cup.
| Date: | 5 March – 5 December |
| Edition: | 30th |
| Main Name: | Davis Cup |
The World Group was the highest level of Davis Cup competition in 2010. The first round losers went into the Davis Cup World Group play-offs while the winners progressed to the quarterfinals. The quarterfinalists were guaranteed a World Group spot for 2011.
The draw for the 2010 World Group was held in Geneva on 23 September 2009.
Competition was delayed one day due to the 27 February 2010 earthquake.