The 2011 Davis Cup (also known as the 2011 Davis Cup by BNP Paribas for sponsorship purposes) was the 100th edition of a tournament between national teams in men's tennis.

Spain was the championship team, winning the final over Argentina, 3–1.

[1][2] The draw took place in September 2010 in Brussels, Belgium.

[3] Seeds: Date: 16–18 September The eight losing teams in the World Group first round ties and eight winners of the Zonal Group I final round ties will compete in the World Group play-offs for spots in the 2012 World Group.

All of them promoted to Group III for 2012 as Groups III and IV were merged for 2012.