| Jerry Wiesmueller | | Milwaukee Police Dept | 142 | 09/13/1985 | D |
| Jim Borgen | Email hidden; Javascript is required. | Fond du Lac Cnty Sheriffs Ofc | 280 | 12/16/2021 | SW |
| Jim Goggins | | Winnebago Cnty Sheriffs Ofc | 171 | 12/11/1992 | |
| Jody Geurink | Email hidden; Javascript is required. | Marshfield Police Dept | 281 | 03/17/2022 | SW |
| Joel Hendrikse | Email hidden; Javascript is required. | Sheboygan Police Department | 292 | 12/12/2024 | SW- Sworn |
| John Brandt | | Monroe Police Dept | 054 | 11/19/1954 | D |
| John Briggs | | WI State Patrol | 109 | 06/16/1977 | D |
| John Butorac | | West Allis Police Dept | 154 | 09/09/1988 | |
| John Costabile | Email hidden; Javascript is required. | City of Racine Police Department | 171 | 12/11/1992 | R- Retired |
| John Daniels | | WI Dept of Natural Resources | 182 | 09/22/1995 | R |
| John Davenport | Email hidden; Javascript is required. | Madison Police Dept | 211 | 12/16/2002 | R |
| John Dinkel | | Superior Police Dept | 133 | 06/24/1983 | |
| John Dlouhy | | Onalaska Police Dept | 101 | 06/19/1975 | |
| John Duplayee | | Tomahawk Police Dept | 093 | 06/22/1973 | D |
| John Dyess | | Racine Police Dept | 110 | 09/23/1977 | D |
| John Filipowicz | | Milwaukee Police Dept | 163 | 12/14/1990 | |
| John Flegiel | | West Bend Police Dept | 206 | 09/07/2001 | R |
| John Giese | | Elkhorn Police Dept | 127 | 12/11/1981 | R |
| John Gossage | Email hidden; Javascript is required. | Brown Cnty Sheriff's Ofc | 221 | 06/10/2005 | R |
| John Gould | Email hidden; Javascript is required. | Cottage Grove Police Dept | 206 | 09/07/2001 | R |
| John Harrington | | WI Dept of Justice/DCI | 052 | 11/20/1953 | |
| John Hoell | Email hidden; Javascript is required. | Mequon Police Department | 286 | 06/08/2023 | SW- Sworn |
| John Johnson | | Muskego Police Dept | 113 | 06/16/1978 | R |
| John Karfonta | | Milwaukee Police Dept | 175 | 12/17/1993 | |
| John Killian | Email hidden; Javascript is required. | WI Dept of Justice/DCI | 119 | 12/14/1979 | R |
