The 1955 Davis Cup was the 44th edition of the Davis Cup, the most important tournament between national teams in men's tennis.

24 teams entered the Europe Zone, 7 teams entered the America Zone, and 3 teams entered the newly reinstated Eastern Zone.

Australia defeated Canada in the America Zone final, Italy defeated Sweden in the Europe Zone final, and Japan defeated the Philippines in the Eastern Zone final.

In the Challenge Round Australia defeated the defending champions the United States.

The final was played at the West Side Tennis Club in Forest Hills, New York, United States on 26–28 August.