The 1970 Dutch Open was a combined men's and women's tennis tournament staged in Hilversum, Netherlands. The tournament was played on outdoor clay courts and was held from 3 August until 9 August 1970. It was the 13th edition of the tournament. Tom Okker won the men's singles title and earned $3,000 first-prize money while Margaret Court won the women's singles event.[1] [2] [3]
Tom Okker defeated 
Roger Taylor 4–6, 6–0, 6–1, 6–3
Margaret Court defeated Kerry Melville 6–1, 6–1
Bill Bowrey / Owen Davidson defeated John Alexander / Phil Dent 6–3, 6–4, 6–2
Karen Krantzcke / Kerry Melville defeated Margaret Court / Helga Niessen 3–6, 9–7, 7–5
Winnie Shaw / Owen Davidson defeated 
Christina Sandberg / Bob Maud 4–6, 6–3, 7–5