The play-offs of the 2019 Fed Cup Americas Zone Group I were the final stages of the Group I Zonal Competition involving teams from the Americas.
The first placed teams of the two pools were drawn in head-to-head rounds.
The winner advanced to the World Group II play-offs.
The runner-up teams of the two pools were drawn in head-to-head to determine the third and fourth placings.
The losers were relegated down to Americas Zone Group II in 2020.