The Düsseldorf Grand Prix or Großer Preis von Düsseldorf was a men's clay court tennis tournament founded in 1905 as a combined event men's and women's called the Düsseldorf International or Internationale Düsseldorf.^[1] It remained a joint event until 1969 and was held at the Rochusclub Düsseldorfer Tennisclub in Düsseldorf, Germany until 1977.^[1]

In 1898 the Rochusclub Düsseldorfer Tennisclub was founded.^[2] In 1905 the club staged the first Internationale Düsseldorf tournament.^[1] In 1929 the club moved to a new location where it remains today.^[3] It was held annually in Düsseldorf, Germany until 1977.^[1] The combined event was sanctioned by the Deutscher Lawn Tennis Bund (f.1902).^[1] From 1914 until 1969 it was an ILTF sanctioned event.^[1] In 1970 the men's event was rebranded as the Dusseldorf Grand Prix and in 1975 it became part of the Grand Prix tennis circuit.^[1] The women's event remained a part of the ILTF Circuit under the original name Dusseldorf International. In 1973 the women's event was branded as the WTA Düsseldorf Open and was part of the 1973 WTA Tour for one edition only, before it returned as an event on the ILTF Independent Tour. The women's event ended in 1974 and the men's tournament was discontinued in 1977 and replaced at the same location by the Nations Cup.^[1]

(incomplete roll)

Year	Winners	Runners-up	Score
1905	Julius Arnold Frese	Karl Simon	6–1, 6–3, 6–3.[1]
1911	Otto Blom	Adolf Hammacher	1–6, 7–5, 6–4, 6–4.[1]
1925	Otto Froitzheim	Willi Hannemann	6–4, 1–6, 6–3, 6–1.[1]
1927	Jean Borotra	Otto Froitzheim	4–6, 2–6, 6–1, 6–2, 6–1.[1]
1929	Jean Borotra	Adolf Hammacher	1–6, 7–5, 6–4, 6–4.[1]
1930	Hyotaro Sato	Harry Hopman	6–4, 2–6, 6–3, 5–7, 6–4.[1]
1937	Franjo Kukuljević	Josef Siba	1–6, 6–3, 6–1, 6–1.[1]
1939	Konrad Eppler	Herbert Werner	6–4, 6–2.[1]
1949	Earl Cochell	Heraldo Weiss	6–2, 6–2, 6–1.[1]
1950	Heraldo Weiss	Dilip Bose	3–6, 8–6, 6–4, 6–3.[1]
1951	Torsten Johansson	Wladyslaw Skonecki	9–7, 7–5, 2–6, 6–3.[1]
1953	Herb Flam	Jaroslav Drobný	3–6, 6–4, 3–6, 6–1, 6–2.[1]
1955	Jaroslav Drobný	Mervyn Rose	6–2, 6–0, 6–3.[1]
1957[4]	Luis Ayala	Mal Anderson	6–4, 6–2, 6–4.[1]
1961	Ramanathan Krishnan	Barry Phillips-Moore	6–1, 6–2, 6–1.[1]
1962	Wilhelm Bungert	Christian Kuhnke	5–7, 6–1, 6–4, 3–6, 6–4.[1]
1963	Fred Stolle	José Edison Mandarino	6–4, 6–4, 6–1.[1]
1967	Wilhelm Bungert	Ingo Buding	6–1, 3–6, 6–3, 6–3.[1]
1968	István Gulyás	Wilhelm Bungert	6–1, 6–3, 3–6, 7–5.[1]
↓  Open era  ↓
1969	Christian Kuhnke	Wilhelm Bungert	6–1, 6–8, 6–2, 6–2.[1]
1970	Wilhelm Bungert	Christian Kuhnke	6–3, 6–0, 6–4.[1]
1971	Christian Kuhnke	Toshiro Sakai	6–3, 6–2, 6–2.[1]
1972	Ilie Năstase	Jürgen Fassbender	6–0, 6–2, 6–1
1973	Hans-Jürgen Pohmann	Jürgen Fassbender	6–2, 6–3, 6–3
1974	Bernard Mignot	Jiří Hřebec	6–1, 6–0, 0–6, 6–4
1975	Jaime Fillol	Jan Kodeš	6–4, 1–6, 6–0, 7–5
1976	Björn Borg	Manuel Orantes	6–2, 6–2, 6–0
1977	Wojciech Fibak	Raymond Moore	6–1, 5–7, 6–2
replaced by Nations Cup

(incomplete roll)

Year	Champions	Runners-up	Score
1974	Jiří Hřebec Jan Kodeš	Kenichi Hirai Toshiro Sakai	6–1, 6–4
1975	François Jauffret Jan Kodeš	Harald Elschenbroich Hans Kary	6–2, 6–3
1976	Wojciech Fibak Karl Meiler	Bob Carmichael Raymond Moore	6–4, 4–6, 6–4
1977	Jürgen Fassbender Karl Meiler	Paul Kronk Cliff Letcher	6–3, 6–3

• Düsseldorf Open (ATP Tour)
• Düsseldorf Open (WTA Tour)

• ATP results archive