1991 Davis Cup
The 1991 Davis Cup was the 80th edition of the Davis Cup, the most important tournament between national teams in men's tennis. 88 teams would enter the competition, 16 in the World Group, 20 in the Americas Zone, 20 in the Asia/Oceania Zone, and 32 in the Europe/Africa Zone. Congo [Davis Cup team|Congo], the Eastern Caribbean, El Salvador and Saudi Arabia made their first appearances in the tournament.
This year's tournament saw the Germany Davis Cup team representing all parts of Germany for the first time since 1939, following the reunification of West and East Germany into a single German state in October 1990. The breakup of Yugoslavia during the tournament also resulted in impacts for the Yugoslavia Davis Cup team, after high-profile Croatian players Goran Ivanišević and Goran Prpić withdrew from the Yugoslav team following Croatia's declaration of independence in June 1991.
France defeated the United States in the final, held at the Palais des Sports de Gerland in Lyon, France, on 29 November–1 December, to win their first title since 1932 International Lawn [Tennis Challenge|1932] and their 7th title overall.
World Group
Final
'''France vs. United States'''World Group qualifying round
Date: 20–22 SeptemberThe eight losing teams in the World Group first round ties and eight winners of the Zonal Group I final round ties competed in the World Group qualifying round for spots in the 1992 World Group.
| Home team | Score | Visiting team | Location | Venue | Door | Surface |
| ' | 3–1 | Manchester | Northern Lawn Tennis Club | Outdoor | Grass | |
| ' | 4–1 | Brussels | Royal Primerose Tennis Club | Outdoor | Clay | |
| ' | 4–1 | São Paulo | Esporte Clube Pinheiros | Outdoor | Clay | |
| 2–3 | ' | Havana | Complejo de Canchas | Outdoor | Hard | |
| ' | 4–1 | Bari | Bari Tennis Club | Outdoor | Clay | |
| 0–5 | ' | Mexico City | Club Alemán de México | Outdoor | Clay | |
| ' | 5–0 | Baden | Bareeg Tennis Club | Indoor | Carpet | |
| 0–5 | ' | Manila | Ninoy Aquino Stadium | Indoor | Carpet |