The Americas Zone was one of the three regional zones of the 1981 Davis Cup. 8 teams entered the Americas Zone in total, split across the North & Central America and South America Zones. With the introduction of a new tiered format, the previous year's sub-zonal finalists bypassed Zonal competition and qualified directly for the new 16-team World Group. The remaining teams would now compete for a place in the following year's World Group. The winner of each sub-zone advanced to the Americas Inter-Zonal Final to compete for one place in next year's World Group.