| 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 | |
| Peter Krosnicki | | Antigo Police Dept | 021 | 04/10/1943 | |
| James Krei | | Marinette Police Dept | 094 | 09/13/1973 | |
| Edward Kreckler | | Wisconsin Rapids Police Dept | 128 | 03/26/1982 | |
| Arnold Kramer | | Milwauke Police Dept | 055 | 06/10/1955 | |
| Theodore Kramer | | Cudahy Police Dept | 055 | 06/10/1955 | |
| John Kovach | | Ashland Police Dept | 108 | 03/24/1977 | |
| Daniel Koprowski | | Milwaukee Police Dept | 098 | 09/12/1974 | |
| Joseph Konicek | | Racine Police Dept | 026 | 10/28/1944 | |
| Thomas Koetting | | Racine Police Dept | 059 | 06/06/1957 | |
| Roger Koenecke | | Janesville Police Dept | 096 | 03/27/1974 | |
| Roxanne King | | Wisconsin State Patrol | 184 | 03/22/1996 | |
| Donald Kennelly | | Wisconsin State Patrol | 084 | 11/05/1969 | |
| Jerome Kavaney | | Appleton Police Dept | 073 | 06/03/1964 | |
| John Karfonta | | Milwaukee Police Dept | 175 | 12/17/1993 | |
| David Kane | | Milwaukee Police Dept | 173 | 06/18/1993 | |