Johan Christiaan Kriek (born April 5, 1958) is a South African–American former professional tennis player. He won two Australian Open titles, beating Steve Denton in four sets in the 1981 final and the same opponent in the 1982 final in straight sets, when he tamed Denton's cannonball serve and "relentlessly whipped winners past him from all angles of the court". He reached the semifinals at the French Open and US Open, as well as the quarterfinals of the Wimbledon Championships. Kriek won 14 professional singles and eight doubles titles, reaching a career-high singles ranking of world No. 7 in September 1984.
He attended Afrikaanse Hoër Seunskool (Afrikaans High School for Boys, also known as Affies), a public school located in Pretoria.
Kriek became a naturalized American citizen in August 1982. He currently resides in Palm Beach Gardens, Florida with his wife, Daga and their children Karolina and Kristian.
| 6–2, 7–6(7–1), 6–7(1–7), 6–4 |
| 6–3, 6–3, 6–2 |
| Loss | 1. | 1978 | Hartford, U.S. | Carpet | John McEnroe | 2–6, 4–6 |
| Win | 1. | 1979 | Sarasota, U.S. | Carpet | Rick Meyer | 7–6, 6–2 |
| Loss | 2. | 1979 | Basel, Switzerland | Hard (i) | Brian Gottfried | 5–7, 1–6, 6–4, 3–6 |
| Loss | 3. | 1980 | Frankfurt, Germany | Carpet (i) | Stan Smith | 6–2, 6–7, 2–6 |
| Loss | 4. | 1980 | ATP Stowe, U.S. | Hard | Bob Lutz | 3–6, 1–6 |
| Win | 2. | 1981 | Monterrey WCT, Mexico | Carpet (i) | Vitas Gerulaitis | 7–6, 3–6, 7–6 |
| Loss | 5. | 1981 | WCT Finals, Dallas | Carpet (i) | John McEnroe | 1–6, 2–6, 4–6 |
| Win | 3. | 1981 | Newport, U.S. | Grass | Hank Pfister | 3–6, 6–3, 7–5 |
| Win | 4. | 1981 | Australian Open, Melbourne | Grass | Steve Denton | 6–2, 7–6, 6–7, 6–4 |
| Win | 5. | 1982 | ATP Memphis, U.S. | Hard (i) | John McEnroe | 6–3, 3–6, 6–4 |
| Loss | 6. | 1982 | Monterrey, Mexico | Carpet | Jimmy Connors | 2–6, 6–3, 3–6 |
| Win | 6. | 1982 | La Costa WCT, U.S. | Hard | Roscoe Tanner | 6–0, 4–6, 6–0, 6–4 |
| Win | 7. | 1982 | Australian Open, Melbourne | Grass | Steve Denton | 6–3, 6–3, 6–2 |
| Loss | 7. | 1983 | Los Angeles, U.S. | Hard | Gene Mayer | 6–7, 1–6 |
| Win | 8. | 1983 | Tampa Open, U.S. | Carpet | Bob Lutz | 6–2, 6–4 |
| Win | 9. | 1983 | Bristol Open, UK | Grass | Tom Gullikson | 7–6, 7–5 |
| Win | 10. | 1983 | Johannesburg, South Africa | Hard | Colin Dowdeswell | 6–4, 4–6, 1–6, 7–5, 6–3 |
| Loss | 8. | 1984 | Boca West, U.S. | Hard | Jimmy Connors | 5–7, 4–6 |
| Win | 11. | 1984 | Bristol, UK | Grass | Brian Teacher | 6–7, 7–6, 6–4 |
| Win | 12. | 1984 | ATP Livingston, U.S. | Hard | Michael Westphal | 6–2, 6–4 |
| Win | 13. | 1985 | Las Vegas, U.S. | Hard | Jimmy Arias | 4–6, 6–3, 6–4, 6–2 |
| Loss | 9. | 1985 | London Queen's Club, UK | Grass | Boris Becker | 2–6, 3–6 |
| Loss | 10. | 1985 | SAP Open, U.S. | Hard (i) | Stefan Edberg | 4–6, 2–6 |
| Win | 14. | 1987 | Livingston, U.S. | Hard | Christian Saceanu | 7–6, 3–6, 6–2 |
| Loss | 11. | 1988 | ATP Schenectady, U.S. | Hard | Tim Mayotte | 7–5, 3–6, 2–6 |
| Loss | 12. | 1988 | San Francisco, U.S. | Hard (i) | Michael Chang | 2–6, 3–6 |
| Loss | 13. | 1989 | Memphis, U.S. | Hard (i) | Brad Gilbert | 2–6, 2–6, ret. |
| Win | 1. | 1980 | Richmond WCT, U.S. | Carpet (i) | Fritz Buehning | Brian Gottfried Frew McMillan | 3–6, 6–3, 7–6 |
| Loss | 1. | 1980 | Sydney Indoor, Australia | Hard (i) | Tim Gullikson | Peter Fleming John McEnroe | 6–4, 1–6, 2–6 |
| Loss | 2. | 1981 | Monterrey WCT, Mexico | Carpet | Russell Simpson | Kevin Curren Steve Denton | 6–7, 2–6 |
| Loss | 3. | 1981 | Bristol Open, UK | Grass | John Austin | Billy Martin Russell Simpson | 6–3, 3–6, 10–12 |
| Win | 2. | 1981 | ATP Stowe, U.S. | Hard | Larry Stefanki | Brian Gottfried Bob Lutz | 2–6, 6–1, 6–2 |
| Win | 3. | 1982 | Forest Hills WCT, U.S. | Clay | Tracy Delatte | Dick Stockton Erik van Dillen | 6–3, 7–6 |
| Win | 4. | 1982 | La Costa WCT, U.S. | Hard | Fritz Buehning | Bob Lutz Raúl Ramírez | 3–6, 7–6, 6–3 |
| Loss | 4. | 1983 | Delray Beach WCT, U.S. | Clay | Anand Amritraj | Pavel Složil Tomáš Šmíd | 6–7, 4–6 |
| Loss | 5. | 1983 | Las Vegas, U.S. | Hard | Tracy Delatte | Kevin Curren Steve Denton | 3–6, 5–7 |
| Win | 5. | 1983 | Forest Hills WCT, U.S. | Clay | Tracy Delatte | Kevin Curren Steve Denton | 7–6, 1–6, 6–1 |
| Loss | 6. | 1983 | Bristol, UK | Grass | Tom Gullikson | John Alexander John Fitzgerald | 5–7, 4–6 |
| Loss | 7. | 1983 | Stockholm Open, Sweden | Hard (i) | Peter Fleming | Anders Järryd Hans Simonsson | 6–7, 5–7 |
| Win | 6. | 1985 | Chicago, U.S. | Carpet (i) | Yannick Noah | Ken Flach Robert Seguso | 3–6, 4–6, 7–5, 6–1, 6–4 |
| Win | 7. | 1988 | Philadelphia, U.S. | Carpet (i) | Kelly Evernden | Kevin Curren Danie Visser | 7–6, 6–3 |
| Win | 8. | 1988 | Tokyo Outdoor, Japan | Hard | John Fitzgerald | Steve Denton David Pate | 6–4, 6–4 |
| South Africa | United States | |||||||||||||||||||
| Australian Open | A/A | A | A | A | W | W | QF | SF | QF | NH | 2R | 2R | 3R | A | A | A | A | A | 2 / 8 | 25–6 |
| French Open | A | A | 1R | A | A | A | A | A | A | SF | 1R | A | A | A | A | A | A | A | 0 / 3 | 4–3 |
| Wimbledon | A | 2R | 3R | 3R | QF | QF | 3R | 4R | 3R | 2R | 4R | 1R | 1R | A | 1R | A | A | A | 0 / 13 | 24–13 |
| US Open | A | QF | QF | SF | 3R | 3R | 4R | 3R | 2R | 3R | 3R | 3R | 1R | A | A | A | A | A | 0 / 12 | 29–12 |
| Year-end ranking | 278 | 27 | 35 | 18 | 13 | 12 | 15 | 13 | 14 | 23 | 48 | 39 | 52 | 413 | 274 | 1097 | 1178 | 861 !colspan=2 | ||
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