The Europe Zone was one of the four zones within Group 3 of the regional Davis Cup competition in 2015. The zone's competition was held in round robin format in San Marino, San Marino, in July 2015. The thirteen competing nations were divided into four pools of three or four teams. The winners from each pool played off to determine the two nations to be promoted to Europe/Africa Zone Group II in 2016, while the second and third placed nations played to off to determine overall placings within the group.