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.[3]