| NAME | YEAR | TEAM | POSITION |
|---|
| Dalton-Hill, Jenny | 2012 | Women's | Assistant Coach |
| DaPron, Duane | 1997 | 16U | Press Officer |
| 1998 | 16U | Press Officer |
| 1999 | 16U | Press Officer |
| 2001 | 16U | Press Officer |
| 2002 | 16U | Press Officer |
| 2003 | 16U | Press Officer |
| 2004 | 18U | Press Officer |
| 2005 | 18U | Press Officer |
| 2006 | 18U | Press Officer |
| 2007 | 18U | Press Officer |
| 2008 | 18U | Press Officer |
| 2009 | 18U | Press Officer |
| Darrell, Don | 2010 | 14U | Manager |
| Darwin, Ray | 1998 | 16U | Program Director |
| 1999 | 16U | Program Director |
| 2000 | 16U | Program Director |
| 2001 | 16U | Program Director |
| 2002 | 16U | Program Director |
| 2003 | 16U | Program Director |
| 2004 | 18U | Program Director |
| 2005 | 18U, Professional | Program Director, Director of Baseball Operations |
| 2006 | 18U | Program Director |
| 2007 | 18U | Program Director |
| 2008 | 18U | Program Director |
| Davidson, Brandie | 2013 | Collegiate | Press Officer |
| 2016 | 12U | Press Officer |
| Davini, Ron | 1995 | 18U | Assistant Coach |
| 1996 | 18U | Manager |
| 1997 | 18U | Assistant Coach |
| 2003 | 16U | Assistant Coach |
| Dawson, Jerry | 2004 | 18U | Assistant Coach |
| 2005 | 18U | Manager |
| de Armas, Rolando | 2006 | Professional | Assistant Coach |
| 2007 | Professional | Auxiliary Coach |
| 2008 | Professional (Olympics) | Assistant Coach |
| 2009 | Professional | Auxillary Coach |
| 2010 | Professional | Assistant Coach |
| 2011 | Professional, Professional | Assistant Coach |
| 2015 | Professional, Professional | Assistant Coach |
| 2019 | Professional | Bullpen Coach |
| 2021 | Professional, Professional (Olympic) | Bullpen Coach |
| Dedeaux, Justin | 1973 | Collegiate | Coach |
| 1974 | Collegiate | Assistant Coach |
| Dedeaux, Rod | 1964 | Collegiate (Olympics) | Coach |
| 1973 | Collegiate | Coach |
| 1974 | Collegiate | Manager |
| 1984 | Collegiate (Olympics) | Manager |
| Dedin, Tom | 1988 | Collegiate | Assistant Coach |
| 1989 | Collegiate | Assistant Coach |
| Delacruz, Anthony | 2002 | 16U | Assistant Coach |
| Demarest, Dave | 1992 | 18U | Assistant Coach |
| Demmink, Herman | 2012 | Collegiate | Strength & Conditioning Coach |
| Denbo, Gary | 2014 | Collegiate | Hitting Coach |
| DeReu, Darin | 2004 | Collegiate | Certified Athletic Trainer |
| DeRosa, Mark | 2023 | Professional (WBC) | Manager |
| Derrell, Don | 2008 | 16U | Assistant Coach |
| Devonport, Ross | 2004 | 16U | Press Officer |
| Dicke, Fred | 2001 | Professional | Team Physician |
| 2005 | Professional | Team Physician |
| 2007 | Professional | Team Physician |
| 2009 | Professional | Team Physician |
| 2011 | Professional, Professional | Team Physician |
| 2015 | Professional | Team Physician |
| Dickie, Fred | 2006 | Professional | Team Physician |
| Dimick, Jim | 1989 | Collegiate | Delegation Head/Business Manager |
| Dittmer, Marty | 1978 | Collegiate | Assistant Coach |
| Dixon, Dan | 1999 | Professional | Advance Scout |
| Doennig, Eric | 2021 | Professional | Press Officer |
| 2023 | Collegiate | Press Officer |
| Doig, George | 1997 | Collegiate | Press Officer |
| 1998 | Collegiate | Press Officer |
| Doman, Roger | 2006 | 18U | Certified Athletic Trainer |
| Dominguez, Ken | 1987 | Collegiate | Delegation Head/Business Manager |
| Domzalski, Steve | 2013 | 18U | Certified Athletic Trainer |
| Donaldson, Chris | 2014 | 15U | Operations Coordinator |
| Donnelly, Rich | 2017 | Professional (WBC) | Bullpen Coach |
| Dorn, Russell | 2014 | 15U | Press Officer |
| 2016 | 15U | Press Officer |
| Doyle, Pat | 1994 | Collegiate | Assistant Coach |
| Due, Chris | 2018 | 12U | Press Officer |
| Duenas, Tommy | 2014 | 15U | Assistant Coach |
| Duggan, Jack | 1996 | 18U | Press Officer |
| 1997 | 18U, 18U | Press Officer |
| Dunn, Pete | 1998 | Collegiate | Assistant Coach |
| Durham, Leon | 2010 | Professional | Hitting Coach |
| 2011 | Professional, Professional | Hitting Coach |
| Dvoroznak, Mark | 2013 | 18U | Operations Coordinator |
