| Eugene Michalski | | WI Dept of Justice/DCI | 075 | 05/26/1965 | |
| Thoams Meronek | | Superior Police Dept | 099 | 12/05/1974 | |
| Benjamin Mendez | | Wisconsin State Patrol | 170 | 09/04/1992 | |
| Theodore Meekma | | Wisconsin State Patrol | 103 | 12/11/1975 | |
| Thomas Mcallister | | Bayfield Cnty Sheriffs Ofc | 102 | 09/25/1975 | |
| Frederick Mathews | | Green Bay Police Dept | 083 | 05/28/1969 | |
| Elwood Mason | | Marathon Cnty Sheriffs Ofc | 102 | 09/25/1975 | |
| Roy Martinson | | Superior Police Dept | 090 | 09/15/1972 | |
| Bruce Marco | | LaCrosse Police Dept | 114 | 09/22/1978 | |
| Ralph Marcheske | | Eagle River Police Dept | 118 | 09/14/1979 | |
| Floyd Maloney | | Chippewa Falls Police Dept | 029 | 07/21/1945 | |
| Leonard Lowe | | Chippewa Falls Police Dept | 126 | 09/11/1981 | |
| Jeffrey Lorentz | | Wisconsin State Patrol | 194 | 09/11/1998 | |
| Robert Loeffler | | La Crosse Police Dept | 059 | 06/06/1957 | |
| James Litwin | | Racine Cnty Sheriffs Ofc | 127 | 12/11/1981 | |
| William Lewitzke | | Wausau Police Dept | 093 | 06/22/1973 | |
| Dominic Leone | | Wauwatosa Police Dept | 189 | 06/20/1997 | |
| Richard Leonard | | Bureau of Indian Affairs | 104 | 03/18/1976 | |
| Philip Lentz | | West Bend Police Dept | 122 | 09/12/1980 | |
| Thomas Lentz | | Waukesha Cnty Sherifs Ofc | 161 | 06/15/1990 | |
| William Lecleir | | Chippewa Cnty Sherrif's Ofc | 111 | 12/09/1977 | |
| David Laude | | Wood Cnty Sheriffs Ofc | 149 | 06/12/1987 | |
| Richard Larsen | | WI Dept of Justice/DCI | 113 | 06/16/1978 | |
| Dale Laine | | WI Dept of Justice/DCI | 126 | 09/11/1981 | |
| Ronald Krueger | | Lincoln Cnty Sheriffs Ofc | 109 | 06/16/1977 | |