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{{flagicon|AUS}} '''[[Mark Woodforde|M Woodforde]]'''"},"RD1-score03-1":{"wt":"'''6'''"},"RD1-score03-2":{"wt":"'''6'''"},"RD1-score03-3":{"wt":" "},"RD1-seed04":{"wt":" "},"RD1-team04":{"wt":"{{flagicon|AUS}} [[Brett Custer|B Custer]]
{{flagicon|AUS}} [[David Macpherson (tennis)|D Macpherson]]"},"RD1-score04-1":{"wt":"1"},"RD1-score04-2":{"wt":"2"},"RD1-score04-3":{"wt":" "},"RD1-seed05":{"wt":"4"},"RD1-team05":{"wt":"{{flagicon|AUS}} '''[[Brad Drewett|B Drewett]]'''
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{{flagicon|NGR}} [[Tony Mmoh|T Mmoh]]"},"RD1-score06-1":{"wt":"2"},"RD1-score06-2":{"wt":"3"},"RD1-score06-3":{"wt":" "},"RD1-seed07":{"wt":" "},"RD1-team07":{"wt":"{{flagicon|AUS}} [[Peter Carter (tennis)|P Carter]]
{{flagicon|AUS}} [[Des Tyson|D Tyson]]"},"RD1-score07-1":{"wt":"4"},"RD1-score07-2":{"wt":"6"},"RD1-score07-3":{"wt":" "},"RD1-seed08":{"wt":" "},"RD1-team08":{"wt":"{{flagicon|AUS}} '''[[Darren Cahill|D Cahill]]'''
{{flagicon|AUS}} '''[[Mark Kratzmann|M Kratzmann]]'''"},"RD1-score08-1":{"wt":"'''6'''"},"RD1-score08-2":{"wt":"'''7'''"},"RD1-score08-3":{"wt":" "},"RD1-seed09":{"wt":" "},"RD1-team09":{"wt":"{{flagicon|AUS}} [[Broderick Dyke|B Dyke]]
{{flagicon|AUS}} [[Wally Masur|W Masur]]"},"RD1-score09-1":{"wt":"4"},"RD1-score09-2":{"wt":"'''6'''"},"RD1-score09-3":{"wt":"2"},"RD1-seed10":{"wt":" "},"RD1-team10":{"wt":"{{flagicon|AUS}} '''[[Peter McNamara|P McNamara]]'''
{{flagicon|AUS}} '''[[Paul McNamee|P McNamee]]'''"},"RD1-score10-1":{"wt":"'''6'''"},"RD1-score10-2":{"wt":"3"},"RD1-score10-3":{"wt":"'''6'''"},"RD1-seed11":{"wt":" "},"RD1-team11":{"wt":"{{flagicon|AUS}} [[Mike Baroch|M Baroch]]
{{flagicon|AUS}} [[Anthony Lane (tennis)|A Lane]]"},"RD1-score11-1":{"wt":"2"},"RD1-score11-2":{"wt":"3"},"RD1-score11-3":{"wt":" "},"RD1-seed12":{"wt":"3"},"RD1-team12":{"wt":"{{flagicon|AUS}} '''[[Mark Edmondson|M Edmondson]]'''
{{flagicon|USA}} '''[[Sherwood Stewart|S Stewart]]'''"},"RD1-score12-1":{"wt":"'''6'''"},"RD1-score12-2":{"wt":"'''6'''"},"RD1-score12-3":{"wt":" "},"RD1-seed13":{"wt":" "},"RD1-team13":{"wt":"{{flagicon|RSA|1928}} [[Denys Maasdorp|D Maasdorp]]
{{flagicon|AUS}} [[Craig A. Miller|C Miller]]"},"RD1-score13-1":{"wt":"3"},"RD1-score13-2":{"wt":"3"},"RD1-score13-3":{"wt":" "},"RD1-seed14":{"wt":" "},"RD1-team14":{"wt":"{{flagicon|USA}} '''[[Glenn Layendecker|G Layendecker]]'''
{{flagicon|USA}} '''[[Tomm Warneke|T Warneke]]'''"},"RD1-score14-1":{"wt":"'''6'''"},"RD1-score14-2":{"wt":"'''6'''"},"RD1-score14-3":{"wt":" "},"RD1-seed15":{"wt":" "},"RD1-team15":{"wt":"{{flagicon|AUS}} [[Peter Doohan|P Doohan]]
{{flagicon|AUS}} [[Laurie Warder|L Warder]]"},"RD1-score15-1":{"wt":"'''6'''"},"RD1-score15-2":{"wt":"3"},"RD1-score15-3":{"wt":"4"},"RD1-seed16":{"wt":"2"},"RD1-team16":{"wt":"{{flagicon|CSK}} '''[[Ivan Lendl|I Lendl]]'''
{{flagicon|RSA|1928}} '''[[Christo van Rensburg|C van Rensburg]]'''"},"RD1-score16-1":{"wt":"3"},"RD1-score16-2":{"wt":"'''6'''"},"RD1-score16-3":{"wt":"'''6'''"},"RD2-seed01":{"wt":"1"},"RD2-team01":{"wt":"{{flagicon|FRG}} '''[[Boris Becker|B Becker]]'''
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{{flagicon|AUS}} [[Mark Woodforde|M Woodforde]]"},"RD2-score02-1":{"wt":"3"},"RD2-score02-2":{"wt":"3"},"RD2-score02-3":{"wt":" "},"RD2-seed03":{"wt":"4"},"RD2-team03":{"wt":"{{flagicon|AUS}} '''[[Brad Drewett|B Drewett]]'''
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{{flagicon|AUS}} [[Mark Kratzmann|M Kratzmann]]"},"RD2-score04-1":{"wt":"4"},"RD2-score04-2":{"wt":"6"},"RD2-score04-3":{"wt":" "},"RD2-seed05":{"wt":" "},"RD2-team05":{"wt":"{{flagicon|AUS}} '''[[Peter McNamara|P McNamara]]'''
{{flagicon|AUS}} '''[[Paul McNamee|P McNamee]]'''"},"RD2-score05-1":{"wt":"'''7'''"},"RD2-score05-2":{"wt":"'''6'''"},"RD2-score05-3":{"wt":" "},"RD2-seed06":{"wt":"3"},"RD2-team06":{"wt":"{{flagicon|AUS}} [[Mark Edmondson|M Edmondson]]
{{flagicon|USA}} [[Sherwood Stewart|S Stewart]]"},"RD2-score06-1":{"wt":"6"},"RD2-score06-2":{"wt":"1"},"RD2-score06-3":{"wt":" "},"RD2-seed07":{"wt":" "},"RD2-team07":{"wt":"{{flagicon|USA}} '''[[Glenn Layendecker|G Layendecker]]'''
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Andres Gomez was the defending champion but did not compete that year.
Pat Cash was the defending champion but lost in the quarterfinals to Boris Becker.
Boris Becker defeated the defending champion Stefan Edberg in the final, 6–0, 7–6(7–1), 6–4 to win the Gentlemen's Singles tennis title at the 1989 Wimbledon Championships.
Stefan Edberg was the defending champion but lost in the semifinals to Michael Stich.
Boris Becker won in the final 6–4, 6–3, 7–6 against Sergio Casal.
Amos Mansdorf was the defending champion but lost in the first round to Michael Chang.
Guy Forget and Yannick Noah were the defending champions but only Forget competed that year with Boris Becker.
Boris Becker was the defending champion but did not compete that year.
Boris Becker and John Fitzgerald were the defending champions but they competed with different partners that year, Becker with Robert Seguso and Fitzgerald with Eric Jelen.
Boris Becker was the defending champion but did not compete that year.
Boris Becker was the defending champion and won in the final 6–1, 3–6, 6–3 against Stefan Edberg.
Ken Flach and Robert Seguso were the defending champions but lost in the quarterfinals to Broderick Dyke and Wally Masur.
Mats Wilander was the defending champion but lost in the semifinals to Stefan Edberg.
Stefan Edberg was the defending champion, but lost in the semifinals this year.
Ivan Lendl was the defending champion.
Boris Becker was the defending champion, but lost in the semifinals this year.
Stefan Edberg was the defending champion, but lost in the second round this year.
Todd Woodbridge and Mark Woodforde were the defending champions, but did not participate this year.
Boris Becker and Slobodan Živojinović were the defending champions, but did not participate this year.
The Men's Doubles tournament at the 1989 Australian Open was held from 16 through 29 January 1989 on the outdoor hard courts at the Flinders Park in Melbourne, Australia. Rick Leach and Jim Pugh won the title, defeating Darren Cahill and Mark Kratzmann in the final.