1981 ATP Championship

The 1981 ATP Championship, also known as the Cincinnati Open, was a men's tennis tournament played on outdoor hard courts at the Lindner Family Tennis Center in Mason, Ohio in the United States that was part of the 1981 Volvo Grand Prix. It was the 80th edition of the tournament and was held from August 17 through August 23, 1981. First-seeded John McEnroe won the singles title.^[3]

1981 ATP Championship
Date	August 17–23
Edition	80th
Category	Grand Prix circuit
Draw	64S / 32D
Prize money	$200,000
Surface	Hard / outdoor
Location	Mason, Ohio, U.S.
Venue	Lindner Family Tennis Center
Champions
Singles
John McEnroe[1]
Doubles
John McEnroe / Ferdi Taygan[2]

Finals

Singles

John McEnroe defeated Chris Lewis 6–3, 6–4

• It was McEnroe's 8th singles title of the year and the 32nd of his career.

Doubles

John McEnroe / Ferdi Taygan defeated Bob Lutz / Stan Smith 7–6, 6–3