| Date: | July 12–18 |
| Edition: | 3rd |
| Category: | Grand Prix / WCT |
| Prize Money: | $50,000 |
| Draw: | 64S / 32D |
| Surface: | Clay / outdoor |
| Location: | Washington, D.C., United States |
| Champs: |  Ken Rosewall[1] |
| Champd: | Tom Okker /  Marty Riessen[2] |
| Main Name: | Washington Open (tennis) Washington Open |
The 1971 Washington Star International was a men's tennis tournament and was played on outdoor clay courts. The event was the third edition of the tournament and was part of both the 1971 Grand Prix circuit and 1971 World Championship Tennis circuit. It was held in Washington, D.C., United States from July 12 through July 18, 1971. Ken Rosewall won the singles title and earned a $10,000 first prize.[3] [4]
See main article: 1971 Washington Star International – Singles. Ken Rosewall defeated Marty Riessen 6–2, 7–5, 6–1
See main article: 1971 Washington Star International – Doubles. Tom Okker / Marty Riessen defeated Bob Carmichael / Ray Ruffels 7–6, 6–2