Washington Indoor

The Washington Indoor was a men's tennis tournament played in Washington D.C., except for the 1973 edition which was held in Merrifield, Virginia and the 1974–75 editions which were held in Landover, Maryland. The inaugural edition was part of the USLTA Indoor and Grand Prix circuits. It was played as part of the World Championship Tennis (WCT) circuit from 1973 until 1976 and the Grand Prix circuit from 1977 until 1980. The event was played on indoor carpet courts. Brian Gottfried was the only multiple singles champion, winning the title in 1977 and 1978.