| Margo F. Jonker | |
| Birth Date: | [1] |
| Coach Sport1: | College Softball |
| Coach Team2: | Grand Valley State (asst.) |
| Coach Years2: | 1977–1979 |
| Coach Team3: | West Ottawa High School |
| Coach Years3: | 1978–1979 |
| Coach Team4: | Central Michigan |
| Coach Years4: | 1980–2019 |
| Coach Sport5: | Volleyball |
| Coach Team6: | Hope College |
| Coach Years6: | 1976 |
| Coach Team7: | Hope College (asst.) |
| Coach Years7: | 1977–1978 |
| Coach Team8: | Central Michigan (asst.) |
| Coach Years8: | 1979 |
| Coach Sport9: | National Softball |
| Coach Team10: | USA Women's Softball (asst.) |
| Coach Years10: | 1998–2000 |
| Overall Record: | Softball: Volleyball: |
| Championships: | 10× MAC Regular Season Champions (1982, 1986, 1987, 1991, 1994, 1996, 1997, 2001, 2002, 2004, 2017) 11x MAC Tournament Champions (1982, 1983, 1984, 1986, 1997, 1999, 2000, 2001, 2002, 2013) MAC East Division Champions (1984) 7× MAC West Division Champions (1998, 2001, 2002, 2004, 2005, 2008, 2017) |
| Awards: | NFCA Hall of Fame (2003) 10× MAC Coach of the Year (1983, 1984, 1986, 1987, 1991, 1994, 1996, 1997, 2002, 2017) NFCA Coach of the Year (1987) NCAA Mideast Region Coach of the Year (1987) 2× NFCA Great Lakes Regional Coach of the Year (1994, 2000) Grand Valley State Hall of Fame (1989) Michigan Amateur Softball Hall of Fame (2000) West Ottawa High School Hall of Fame (2001) Metro Detroit Amateur Softball Association (2014) |
Margo F. Jonker is an American softball coach and the current head coach of the Central Michigan Chippewas. She was a 2003 inductee in the National Fastpitch Coaches Association Hall of Fame.
During her 31 years as head coach, the Chippewas have gone to the NCAA tournament 13 times and have 11 Mid-American Conference (MAC) titles. Jonker was formerly an assistant softball coach at Grand Valley State University and head coach at West Ottawa High School. CMU's Margo Jonker stadium is named after her.
At the 2000 Olympics she served as an assistant coach on the United States Olympic softball team that captured the gold medal in Sydney, Australia.[2]
She is a Holland, Michigan native and attended and played softball for the Grand Valley State Lakers.[3]