The 1983 ATP Championship, also known as the ATP Championships, 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 1983 Volvo Grand Prix.

Fourth-seeded Mats Wilander won the singles title.

Mats Wilander defeated John McEnroe 6–4, 6–4 Victor Amaya / Tim Gullikson defeated Carlos Kirmayr / Cássio Motta 6–4, 6–3

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