This is a compilation of
Union
high school
basketball
coach history.
| 2009 | 2014 | 6 | Jeff Holloway | 72-140-0 |
| 1953 | 1956 | 4 | Keith Helms | 68-25-0 |
| 1965 | 1969 | 5 | Craig Marlin | 60-47-0 |
| 1962 | 1964 | 3 | Dan Waterfill | 51-15-0 |
| 2015 | 2024 | 10 | Dan Carmony | 32-175-0 |
| 1984 | 1987 | 4 | Mike Rawlings | 30-53-0 |
| 1998 | 2001 | 4 | Everett Gates | 22-59-0 |
| 1970 | 1970 | 1 | Larry Conklin | 19-5-0 |
| 1975 | 1977 | 3 | Tom Freije | 19-42-0 |
| 1971 | 1973 | 3 | Dick Young | 18-36-0 |
| 1978 | 1978 | 1 | Dick Hoffmeyer | 16-7-0 |
| 1979 | 1981 | 3 | Dan Ross | 14-48-0 |
| 1994 | 1995 | 2 | Don Street | 13-28-0 |
| 2002 | 2004 | 3 | Aaron Groves | 13-49-0 |
| 1996 | 1997 | 2 | Randy Shore | 12-29-0 |
| 2007 | 2008 | 2 | Mark Kerkhoff | 12-32-0 |
| 2005 | 2006 | 2 | Kenny Ellis | 10-30-0 |
| 1988 | 1989 | 2 | Kent Wise | 9-31-0 |
| 1957 | 1957 | 1 | Pete Chalfant | 8-13-0 |
| 1958 | 1958 | 1 | Cloyce Quackenbush | 5-14-0 |
| 1974 | 1974 | 1 | Tim Heller | 5-17-0 |
| 1982 | 1983 | 2 | John Warwick | 5-34-0 |
| 1960 | 1961 | 2 | Virgil Ruble | 5-35-0 |
| 1991 | 1993 | 3 | Joel Martin | 5-44-0 |
| 1990 | 1990 | 1 | Adrian Richie | 2-18-0 |
| 1959 | 1959 | 1 | Lee Felton | 2-18-0 |
