The European and African Zone was one of the three zones of regional Davis Cup competition in 2003.
In the Europe/Africa Zone there were four different tiers, called groups, in which teams competed against each other to advance to the upper tier. Winners in Group I advanced to the World Group play-offs, along with losing teams from the World Group first round. Teams who lost their respective ties competed in the relegation play-offs, with winning teams remaining in Group I, whereas teams who lost their play-offs were relegated to the Europe/Africa Zone Group II in 2004.
Participating teams
Seeds:
Remaining nations:
Draw
and relegated to Group II in 2004. , , , and advance to World Group Play-off.