The 1985 Buick WCT Finals was a tennis tournament played on indoor carpet courts. It was the 15th edition of the WCT Finals and was part of the 1985 Nabisco Grand Prix, as the two organisations had reunited. It was played at the Reunion Arena in Dallas, Texas in the United States from April 8 through April 15, 1985.

Ivan Lendl defeated Tim Mayotte 7–6, 6–4, 6–1