1971 Washington Star International

{{Use mdy dates|date=August 2023}}

{{Infobox tennis tournament year|1971|Washington Star International|

| 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={{flagicon|AUS}} Ken Rosewall{{cite web|title=1971 Washington WCT – Singles draw|url=https://www.atptour.com/en/scores/archive/washington/418/1971/draws?matchtype=singles|publisher=Association of Tennis Professionals (ATP)}}

| champd={{flagicon|NED}} Tom Okker / {{flagicon|USA}} Marty Riessen{{cite web|title=1971 Washington WCT – Doubles draw|url=https://www.atptour.com/en/scores/archive/washington/418/1971/draws?matchtype=doubles|publisher=Association of Tennis Professionals (ATP)}}

| 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.{{cite book|title=World of Tennis '72|year=1972|publisher=Queen Anne Press|location=London|isbn=9780362001037|oclc=86035663|pages=150, 151|editor=John Barrett}}{{cite news|title=Ken Rosewall 'Star' winner|url=https://news.google.com/newspapers?id=Z5EtAAAAIBAJ&sjid=EY0EAAAAIBAJ&pg=3867%2C2941860|newspaper=Sarasota Journal|date=July 19, 1971|page=1C}}