| Details | |
|---|---|
| Duration | 29 April – 5 September 1938 |
| Edition | 33rd |
| Teams | 24 |
| Champion | |
| Winning nation |  United States |
←1937 1939 → | |
The1938 International Lawn Tennis Challenge was the 33rd edition of what is now known as theDavis Cup. 21 teams entered the Europe Zone, while 4 entered the Americas Zone.
Australia defeatedJapan in the Americas Zone final, while in the Europe Zone finalGermany defeatedYugoslavia. Australia defeated Germany in the Inter-Zonal play-off, but were defeated in the Challenge Round by defending champions theUnited States. The final was played at theGermantown Cricket Club inPhiladelphia,Pennsylvania, United States on 3–5 September.[1][2][3]
| Semifinals 28–31 July | Final 12–14 August | |||||||
| Kansas City, MO, United States (clay) | ||||||||
 Australia | 5 | |||||||
| Montreal, Canada (grass) | ||||||||
 Mexico | 0 | |||||||
| Australia | 3 | |||||||
| Montreal, Canada (grass) | ||||||||
 Japan | 1 | |||||||
 Canada | 0 | |||||||
| Japan | 5 | |||||||
Australia vs. Japan
 Australia 3 | Mount Royal Tennis Club,Montreal, Canada[4] 12–14 August 1938 Grass |  Japan 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| First Round 29 April–10 May | Second Round 5–23 May | Quarterfinals 26–31 May | Semifinals 21–23 July | Final 29–31 July | |||||||||||||||||||
 Germany | Berlin, Germany (clay) | ||||||||||||||||||||||
| bye | Germany | 5 | |||||||||||||||||||||
 Norway | Norway | 0 | Budapest, Hungary | ||||||||||||||||||||
| bye | Germany | 3 | |||||||||||||||||||||
 Hungary | Hungary | 1 | |||||||||||||||||||||
| bye | Hungary | w/o | |||||||||||||||||||||
 New Zealand | New Zealand | Berlin, Germany (clay) | |||||||||||||||||||||
| bye | Germany | 3 | |||||||||||||||||||||
 Monaco | Marseille, France (clay) |  France | 2 | ||||||||||||||||||||
| bye | Monaco | 0 | |||||||||||||||||||||
 Netherlands | 2 | France | 5 | Paris, France (clay) | |||||||||||||||||||
| France | 3 | France | 4 | ||||||||||||||||||||
 Poland | 5 | Milan, Italy (clay) |  Italy | 1 | |||||||||||||||||||
 Denmark | 0 | Poland | 2 | ||||||||||||||||||||
 Ireland | 1 | Italy | 3 | Berlin, Germany (clay) | |||||||||||||||||||
| Italy | 4 | Germany | 3 | ||||||||||||||||||||
 Great Britain | 3 | Zagreb,Yugoslavia (clay) |  Yugoslavia | 2 | |||||||||||||||||||
 Romania | 2 | Great Britain | 0 | ||||||||||||||||||||
| Yugoslavia | 3 | Yugoslavia | 5 | Zagreb,Yugoslavia (clay) | |||||||||||||||||||
 Czechoslovakia | 2 | Yugoslavia | 3 | ||||||||||||||||||||
| bye | Stockholm, Sweden (clay) |  Sweden | 1 | ||||||||||||||||||||
| Sweden | Sweden | 4 | |||||||||||||||||||||
| bye |  Switzerland | 1 | Brussels, Belgium | ||||||||||||||||||||
| Switzerland | Yugoslavia | 5 | |||||||||||||||||||||
| bye |  Belgium | 0 | |||||||||||||||||||||
 India | India | w/o | |||||||||||||||||||||
| bye |  Austria[a] | Brussels, Belgium | |||||||||||||||||||||
| Austria | India | 1 | |||||||||||||||||||||
| bye | Athens, Greece | Belgium | 3 | ||||||||||||||||||||
 Greece | Greece | 0 | |||||||||||||||||||||
| bye | Belgium | 5 | |||||||||||||||||||||
| Belgium | |||||||||||||||||||||||
Germany vs. Yugoslavia
 Germany 3 | Rot-Weiss Tennis Club,Berlin, Germany[5] 29–31 July 1938 Clay |  Yugoslavia 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Australia vs. Germany
Australia 5 | Longwood Cricket Club,Boston, MA, United States[6] 18–20 August 1938 Grass | Germany 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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United States vs. Australia
 United States 3 | Germantown Cricket Club,Philadelphia, PA, United States[3] 3–5 September 1938 Grass | Australia 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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