1989 Player's Canadian Open

{{Use mdy dates|date=August 2023}}

{{TennisEventInfo|1989|Player's Canadian Open|

| date=August 14–20 (men)
August 21–27 (women)

| edition=100th

| surface=Hard / outdoor

| location=Montreal, Quebec, Canada (men)
Toronto, Ontario, Canada (women)

| champms={{flagicon|CSK}} Ivan Lendl{{cite web|title=1989 Montreal– Men's singles draw|url=https://www.atptour.com/en/scores/archive/toronto/421/1989/draws?matchtype=singles|publisher=Association of Tennis Professionals (ATP)}}

| champws={{flagicon|USA}} Martina Navratilova

| champmd={{flagicon|NZL}} Kelly Evernden / {{flagicon|USA}} Todd Witsken{{cite web|title=1989 Montreal– Men's soubles draw|url=https://www.atptour.com/en/scores/archive/toronto/421/1989/draws?matchtype=doubles|publisher=Association of Tennis Professionals (ATP)}}

| champwd={{flagicon|USA}} Gigi Fernández / {{flagicon|USA}} Robin White

| main_name= Canadian Open (tennis) {{!}} Canadian Open

}}

The 1989 Player's International Canadian Open was a tennis tournament played on outdoor hard courts. The men's tournament was held at the du Maurier Stadium in Montreal in Canada and was part of the 1989 Nabisco Grand Prix while the women's tournament was held at the National Tennis Centre in Toronto in Canada and was part of the Category 5 tier of the 1989 WTA Tour. The men's tournament was held from August 14 through August 20, 1989, while the women's tournament was held from August 21 through August 27, 1989.