The 1986 Davis Cup (also known as the 1986 Davis Cup by NEC for sponsorship purposes) was the 75th edition of the Davis Cup, the most important tournament between national teams in men's tennis. This year's tournament marked the introduction of the Africa Zone, which served as a qualifying sub-round for the Europe Zone. 71 teams would enter the competition, 16 in the World Group, 33 in the Europe Zone (including 9 in the Africa Zone), 13 in the Eastern Zone, and 9 in the Americas Zone. Bangladesh, Ivory Coast, Libya, Malta and Syria made their first appearances in the tournament. Australia defeated the two-time defending champions Sweden in the final, held at the Kooyong Stadium in Melbourne, Australia, on 26–28 December, to win their 26th Davis Cup title.

World Group

Draw

Final

Australia vs. Sweden

Relegation play-offs

Date: 3–5 October

Americas Zone

Eastern Zone

Europe Zone

Africa Zone

Europe Zone A

Europe Zone B