1978 Australian Open
{{Use Australian English|date=March 2024}}
{{Use dmy dates|date=April 2022}}
{{TennisEventInfo|1978|Australian Open|
| date = 25 December – 3 January 1979
| edition = 67th
| category=Grand Slam (ITF)
| location=Melbourne, Victoria, Australia
| venue=Kooyong Lawn Tennis Club
| surface=Grass
| champms = {{Flagicon|ARG}} Guillermo Vilas
| champws = {{Flagicon|AUS}} Chris O'Neil
| champmd = {{Flagicon|POL}} Wojciech Fibak / {{Flagicon|AUS}} Kim Warwick
| champwd = {{Flagicon|USA}} Betsy Nagelsen / {{Flagicon|TCH}} Renáta Tomanová
| before_year=1977
| before_name=Australian Open (December)
}}
The 1978 Australian Open was a tennis tournament played on outdoor grass courts at the Kooyong Lawn Tennis Club in Melbourne, Australia and was held from 25 December 1978 to 3 January 1979. It was the 67th edition of the Australian Open and the fourth Grand Slam tournament of the year. The singles titles were won by Argentinian Guillermo Vilas and Australian Chris O'Neil.
Seniors
=Men's singles=
{{Main|1978 Australian Open – Men's singles}}
{{Flagicon|ARG}} Guillermo Vilas defeated {{Flagicon|AUS}} John Marks, 6–4, 6–4, 3–6, 6–3 {{cite web|title=1978 Men's Singles|url=http://www.australianopen.com/en_AU/event_guide/history/draws/1978_MS_1.html|publisher=Tennis Australia}}
:• It was Vilas' 3rd career Grand Slam singles title and his 1st title at the Australian Open.
=Women's singles=
{{Main|1978 Australian Open – Women's singles}}
{{Flagicon|AUS}} Chris O'Neil defeated {{Flagicon|USA}} Betsy Nagelsen, 6–3, 7–6(7–3) {{cite web|title=1978 Women's Singles|url=http://www.australianopen.com/en_AU/event_guide/history/draws/1978_LS_1.html|publisher=Tennis Australia}}
:• It was O'Neil's 1st and only career Grand Slam singles title.
=Men's doubles=
{{Flagicon|POL}} Wojciech Fibak / {{Flagicon|AUS}} Kim Warwick defeated {{Flagicon|AUS}} Paul Kronk / {{Flagicon|AUS}} Cliff Letcher, 7–6, 7–5 {{cite web|title=1978 Men's Doubles|url=http://www.australianopen.com/en_AU/event_guide/history/draws/1978_MD_1.html|publisher=Tennis Australia}}
:• It was Fibak's only career Grand Slam doubles title.
:• It was Warwick's 1st career Grand Slam doubles title.
=Women's doubles=
{{flagicon|USA}} Betsy Nagelsen / {{flagicon|TCH}} Renáta Tomanová defeated {{flagicon|JPN}} Naoko Sato / {{flagicon|AUS}} Pam Whytcross, 7–5, 6–2 {{cite web|title=1978 Women's Doubles|url=http://www.australianopen.com/en_AU/event_guide/history/draws/1978_LD_1.html|publisher=Tennis Australia}}
:• It was Nagelsen's 1st career Grand Slam doubles title.
:• It was Tomanová's 1st and only career Grand Slam doubles title.
=Mixed doubles=
References
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{{s-bef|before=1978 US Open}}
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{{Australian Open championships}}
{{1978 Colgate-Palmolive Grand Prix}}
{{1978 WTA Tour}}
{{DEFAULTSORT:Australian Open, 1978}}
Category:December 1978 sports events in Australia