The 2017 Davis Cup World Group play-offs were held from September 15 to 17.
They were the main play-offs of the 2017 Davis Cup.
The winners of the playoffs advanced to the 2018 Davis Cup World Group, and the losers were relegated to their respective Zonal Regions I.
Bold indicates team had qualified for the 2018 Davis Cup World Group.
Date: 15–17 September The 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 play-offs for spots in the 2018 World Group.