2016 Davis Cup World Group

The World Group was the highest level of Davis Cup competition in 2016. The first-round losers went into the Davis Cup World Group play-offs, and the winners progressed to the quarterfinals and World Group spot for 2017.

Seeds
• # (semifinals)

• # (first round)

• # (quarterfinals)

• # (first round)

• # (semifinals)

• # (champions)

• # (quarterfinals)

• # (first round)

Great Britain vs. Japan
Murray's win over Nishikori was the joint longest match of his career at 4 hours and 54 minutes, along with the 2012 US Open final, until his davis cup semi-final tie with Del Potro.