The 1980 Player's International Canadian Open was a tennis tournament played on outdoor hard courts at the National Tennis Centre in Toronto in Canada that was part of the 1980 Volvo Grand Prix and of the 1980 WTA Tour. The tournament was held from August 11 through August 17, 1980.
See main article: article and 1980 Player's Canadian Open – Men's singles. Ivan Lendl defeated Björn Borg 4–6, 5–4 retired
Chris Evert-Lloyd defeated Virginia Ruzici 6–3, 6–1
Bruce Manson / Brian Teacher defeated Heinz Günthardt / Sandy Mayer 6–3, 3–6, 6–4
Andrea Jaeger / Regina Maršíková defeated Ann Kiyomura / Betsy Nagelsen 6–1, 6–3