The Eastern Zone was one of the three regional zones of the 1976 Davis Cup. 12 teams entered the Eastern Zone, with 10 teams competing in the preliminary round to join the previous year's finalists Australia and New Zealand in the main draw. The winner of the main draw went on to compete in the Inter-Zonal Zone against the winners of the Americas Zone and Europe Zone. Australia defeated New Zealand in the final and progressed to the Inter-Zonal Zone.