The 1971 Dutch Open was a combined men's and women's tennis tournament staged at 't Melkhuisje in Hilversum, Netherlands. It was a non–tour event, i.e. not part of one of the main tennis circuits, the Grand Prix or World Championship Tennis circuit. The tournament was played on outdoor clay courts and was held from 26 July through 1 August 1971. It was the 14th edition of the tournament and was part of the 1971 Grand Prix circuit. Gerald Battrick and Evonne Goolagong won the singles titles.

Finals

Christina Sandberg at the 1971 Dutch Open

Men's singles

United Kingdom Gerald Battrick defeated Australia Ross Case 6–3, 6–4, 9–7

Women's singles

Australia Evonne Goolagong defeated Sweden Christina Sandberg 8–6, 6–3

Men's doubles

France Jean-Claude Barclay / France Daniel Contet defeated Australia John Cooper / Australia Colin Dibley 7–5, 3–6, 7–5, 4–6, 6–2

Women's doubles

Netherlands Betty Stöve / Sweden Christina Sandberg defeated West Germany Katja Ebbinghaus / Netherlands Trudy Walhof 6–1, 6–2

Mixed doubles

Netherlands Betty Stöve / France Jean-Claude Barclay defeated Sweden Christina Sandberg / France Patrice Dominguez 8–6, 6–3