1970 German Open Championships

The 1970 German Open Championships was a combined men's and women's tennis tournament played on outdoor red clay courts. It was the 62nd edition of the tournament, the first one in the Open Era, and took place at the Am Rothenbaum in Hamburg, West Germany, from 10 August through 17 August 1970. First-seeded Tom Okker and Helga Schultze-Hösl won the singles titles.

Tom Okker defeated Ilie Năstase 4–6, 6–3, 6–3, 6–4

Helga Hösl Schultze defeated Helga Niessen 6–3, 6–3

Bob Hewitt / Frew McMillan defeated Tom Okker / Nikola Pilić 6–3, 7–5, 6–2

Karen Krantzcke / Kerry Melville defeated Winnie Shaw / Virginia Wade 6–0, 6–1

Judy Dalton / Frew McMillan defeated Evonne Goolagong / Bob Hewitt 6–4, 6–4