2013 Davis Cup World Group

The World Group was the highest level of Davis Cup competition in 2013. The first-round losers go into the Davis Cup World Group play-offs, and the winners progress to the quarterfinals. The quarterfinalists were guaranteed a World Group spot for 2014. Czech Republic defended their Davis Cup title, by defeating the Serbian team in Belgrade in the final.

Seeds
• # (first round)

• # (champions)

• # (semifinals)

• #  (final)

• # (quarterfinals)

• # (quarterfinals)

• # (first round)

• # (quarterfinals)

Switzerland vs. Czech Republic
The doubles match was the second longest match of all time (7 hours and 1 minute).