Heinz Peter Günthardt (German pronunciation: [haɪ̯nt͡s ˈɡʏnthart]; born 8 February 1959) is a retired tennis player from Switzerland.

Günthardt won five singles titles during his professional career, including the Rotterdam WCT in 1980. The right-hander reached his career-high ATP singles ranking of world No. 22 in April 1986.

In doubles, he captured a total number of 30 titles. Günthardt won the men's doubles at the 1981 Roland Garros and the 1985 Wimbledon Championships with Balázs Taróczy, and the mixed doubles at the 1985 US Open with Martina Navratilova. He was also a member of the Swiss team at the 1988 Olympic Games.^[1]

Günthardt was the coach of Steffi Graf from the start of 1992 until the end of Graf's tennis playing career in July 1999, and he also worked briefly with Jelena Dokić and Jennifer Capriati.^[2]

From February to November 2010, he coached former world No. 1 Ana Ivanovic.^[3] He had not coached full-time since Graf's retirement in 1999.^[4] When Günthardt started coaching her, Ivanovic had dropped out of the WTA's top 20, and she dropped to a career low of world No. 65 in July 2010.^[5] During their partnership, Ivanovic recovered to world No. 17^[6][7] before Günthardt ended his coaching relationship with her due to family responsibilities.^[8]

Günthardt has been captain of the Swiss Fed Cup team since March 2012. He reached the final with the team in 2021, and won the Cup in 2022.^[9]

Result	W/L	Date	Tournament	Surface	Opponent	Score
Win	1–0	Feb 1978	Springfield, U.S.	Carpet (i)	Harold Solomon	6–3, 3–6, 6–2
Win	2–0	Mar 1980	Rotterdam, Netherlands	Carpet (i)	Gene Mayer	6–2, 6–4
Win	3–0	Apr 1980	Johannesburg, South Africa	Hard	Victor Amaya	6–4, 6–4
Win	4–0	Jul 1980	Gstaad, Switzerland	Clay	Kim Warwick	4–6, 6–4, 7–6(7–1)
Loss	4–1	Jul 1981	Hilversum, Netherlands	Clay	Balázs Taróczy	3–6, 7–6, 4–6
Loss	4–2	Jul 1982	Zell Am See WCT, Austria	Clay	José Luis Clerc	0–6, 6–3, 2–6, 1–6
Loss	4–3	Jul 1983	Stuttgart Outdoor, West Germany	Clay	José Higueras	1–6, 1–6, 6–7
Win	5–3	Nov 1983	Toulouse, France	Hard (i)	Pablo Arraya	6–0, 6–2
Loss	5–4	Nov 1984	Toulouse, France	Hard (i)	Mark Dickson	6–7(3–7), 4–6

Result	No.	Date	Tournament	Surface	Partner	Opponents	Score
Loss	1.	1978	Toronto, Canada	Clay	Colin Dowdeswell	Wojciech Fibak Tom Okker	3–6, 6–7
Loss	2.	1979	Rotterdam, Netherlands	Carpet (i)	Bernard Mitton	Peter Fleming John McEnroe	4–6, 4–6
Win	1.	1979	Johannesburg, South Africa	Hard	Colin Dowdeswell	Raymond Moore Ilie Năstase	6–3, 7–6
Win	2.	1979	Båstad, Sweden	Clay	Bob Hewitt	Mark Edmondson John Marks	6–2, 6–2
Win	3.	1979	Kitzbühel, Austria	Clay	Željko Franulović	Dick Crealy Antonio Zugarelli	6–2, 6–4
Loss	3.	1979	Toronto, Canada	Hard	Bob Hewitt	Peter Fleming John McEnroe	7–6, 6–7, 1–6
Loss	4.	1979	Cologne, West Germany	Hard (i)	Pavel Složil	Gene Mayer Stan Smith	3–6, 4–6
Loss	5.	1980	Denver, U.S.	Carpet	Wojciech Fibak	Kevin Curren Steve Denton	5–7, 2–6
Loss	6.	1980	Johannesburg, South Africa	Hard	Colin Dowdeswell	Bob Hewitt Frew McMillan	4–6, 3–6
Win	4.	1980	Munich, West Germany	Clay	Bob Hewitt	David Carter Chris Lewis	7–6, 6–1
Win	5.	1980	Båstad, Sweden	Clay	Markus Günthardt	John Feaver Peter McNamara	6–4, 6–4
Loss	7.	1980	Toronto, Canada	Hard	Sandy Mayer	Bruce Manson Brian Teacher	3–6, 6–3, 4–6
Loss	8.	1980	Geneva, Switzerland	Clay	Markus Günthardt	Željko Franulović Balázs Taróczy	4–6, 6–4, 4–6
Loss	9.	1980	Vienna, Austria	Hard (i)	Pavel Složil	Robert Lutz Stan Smith	1–6, 2–6
Win	6.	1980	Stockholm, Sweden	Carpet (i)	Paul McNamee	Robert Lutz Stan Smith	6–7, 6–3, 6–2
Loss	10.	1980	Johannesburg, South Africa	Hard	Paul McNamee	Robert Lutz Stan Smith	7–6, 3–6, 4–6
Win	7.	1981	Monte-Carlo, Monaco	Clay	Balázs Taróczy	Pavel Složil Tomáš Šmíd	6–3, 6–3
Win	8.	1981	French Open, Paris	Clay	Balázs Taróczy	Terry Moor Eliot Teltscher	6–2, 7–6, 6–3
Win	9.	1981	Gstaad, Switzerland	Clay	Markus Günthardt	David Carter Paul Kronk	6–4, 6–1
Win	10.	1981	Hilversum, Netherlands	Clay	Balázs Taróczy	Raymond Moore Andrew Pattison	6–0, 6–2
Win	11.	1981	North Conway, U.S.	Clay	Peter McNamara	Pavel Složil Ferdi Taygan	6–7, 7–5, 6–4
Loss	11.	1981	US Open, New York	Hard	Peter McNamara	Peter Fleming John McEnroe	def.
Win	12.	1981	Sawgrass Doubles, U.S.	Clay	Peter McNamara	Robert Lutz Stan Smith	7–6, 3–6, 7–6, 5–7, 6–4
Win	13.	1981	Geneva, Switzerland	Clay	Balázs Taróczy	Pavel Složil Tomáš Šmíd	6–4, 3–6, 6–2
Loss	12.	1981	Madrid, Spain	Clay	Tomáš Šmíd	Hans Gildemeister Andrés Gómez	4–6, 6–3, 3–6
Win	14.	1981	Tokyo Outdoor, Japan	Clay	Balázs Taróczy	Larry Stefanki Robert Van't Hof	3–6, 6–2, 6–1
Loss	13.	1981	Tokyo Indoor, Japan	Carpet (i)	Balázs Taróczy	Victor Amaya Hank Pfister	4–6, 2–6
Win	15.	1982	Masters Doubles WCT, London	Carpet (i)	Balázs Taróczy	Kevin Curren Steve Denton	6–7, 6–3, 7–5, 6–4
Loss	14.	1982	Cairo, Egypt	Clay	Markus Günthardt	Drew Gitlin Jim Gurfein	4–6, 5–7
Win	16.	1982	Milan, Italy	Carpet (i)	Peter McNamara	Mark Edmondson Sherwood Stewart	7–6, 7–6
Loss	15.	1982	Madrid, Spain	Clay	Balázs Taróczy	Pavel Složil Tomáš Šmíd	1–6, 6–3, 7–9
Win	17.	1982	Rome, Italy	Clay	Balázs Taróczy	Wojciech Fibak John Fitzgerald	6–4, 4–6, 6–3
Loss	16.	1982	Gstaad, Switzerland	Clay	Markus Günthardt	Sandy Mayer Ferdi Taygan	2–6, 3–6
Loss	17.	1982	Hilversum, Netherlands	Clay	Balázs Taróczy	Jan Kodeš Tomáš Šmíd	6–7, 4–6
Loss	18.	1982	Wembley, England	Carpet (i)	Tomáš Šmíd	Peter Fleming John McEnroe	6–7, 4–6
Win	18.	1983	Masters Doubles WCT, London	Carpet (i)	Balázs Taróczy	Brian Gottfried Raúl Ramírez	6–3, 7–5, 7–6
Win	19.	1983	Brussels, Belgium	Carpet (i)	Balázs Taróczy	Hans Simonsson Mats Wilander	6–2, 6–4
Loss	19.	1983	Munich WCT, West Germany	Carpet (i)	Balázs Taróczy	Kevin Curren Steve Denton	5–7, 6–2, 1–6
Win	20.	1983	Monte-Carlo, Monaco	Clay	Balázs Taróczy	Henri Leconte Yannick Noah	6–2, 6–4
Loss	20.	1983	Bournemouth, United Kingdom	Clay	Balázs Taróczy	Tomáš Šmíd Sherwood Stewart	6–7, 5–7
Win	21.	1983	Madrid, Spain	Clay	Pavel Složil	Markus Günthardt Zoltán Kuhárszky	6–3, 6–3
Win	22.	1983	Hamburg, West Germany	Clay	Balázs Taróczy	Mark Edmondson Brian Gottfried	7–6, 4–6, 6–4
Win	23.	1983	Hilversum, Netherlands	Clay	Balázs Taróczy	Jan Kodeš Tomáš Šmíd	3–6, 6–2, 6–3
Win	24.	1983	Toulouse, France	Hard (i)	Pavel Složil	Bernard Mitton Butch Walts	5–7, 7–5, 6–4
Loss	21.	1984	Memphis, U.S.	Carpet (i)	Tomáš Šmíd	Fritz Buehning Peter Fleming	5–7, 6–7
Loss	22.	1984	Hamburg, West Germany	Clay	Balázs Taróczy	Stefan Edberg Anders Järryd	3–6, 1–6
Win	25.	1984	Gstaad, Switzerland	Clay	Markus Günthardt	Givaldo Barbosa João Soares	6–4, 3–6, 7–6
Loss	23.	1984	Indianapolis, U.S.	Clay	Balázs Taróczy	Ken Flach Robert Seguso	6–7, 5–7
Loss	24.	1984	Vienna, Austria	Hard (i)	Balázs Taróczy	Wojciech Fibak Sandy Mayer	4–6, 4–6
Loss	25.	1985	Masters Doubles WCT, London	Carpet (i)	Balázs Taróczy	Ken Flach Robert Seguso	3–6, 6–3, 3–6, 0–6
Win	26.	1985	La Quinta, U.S.	Hard	Balázs Taróczy	Ken Flach Robert Seguso	3–6, 7–6, 6–3
Win	27.	1985	Milan, Italy	Carpet (i)	Anders Järryd	Broderick Dyke Wally Masur	6–2, 6–1
Loss	26.	1985	Hamburg, West Germany	Clay	Balázs Taróczy	Hans Gildemeister Andrés Gómez	6–1, 6–7, 4–6
Win	28.	1985	Wimbledon, London	Grass	Balázs Taróczy	Pat Cash John Fitzgerald	6–4, 6–3, 4–6, 6–3
Win	29.	1986	Masters Doubles WCT, London	Carpet (i)	Balázs Taróczy	Paul Annacone Christo van Rensburg	6–4, 1–6, 7–6, 6–7, 6–4
Win	30.	1986	Kitzbühel, Austria	Clay	Tomáš Šmíd	Hans Gildemeister Andrés Gómez	4–6, 6–3, 7–6
Loss	27.	1988	Nice, France	Clay	Diego Nargiso	Guy Forget Henri Leconte	6–4, 3–6, 4–6
Loss	28.	1989	Milan, Italy	Carpet (i)	Balázs Taróczy	Jakob Hlasek John McEnroe	3–6, 4–6
Loss	29.	1989	Nice, France	Clay	Balázs Taróczy	Ricki Osterthun Udo Riglewski	6–7, 7–6, 1–6

• Heinz Günthardt at the Association of Tennis Professionals
• Heinz Günthardt at the International Tennis Federation
• Heinz Günthardt at the Davis Cup
• Heinz Günthardt at Olympics.com
• Heinz Günthardt at Olympedia