| Season 4 | |
 | |
| Country of origin | USA |
| Original channel | truTV |
| Original run | October 1 –December 29, 1999 |
| Episode # | 13 Episodes |
| Other Seasons | 1, 2, 3, 4,5, 6,7,8 9,10,11, 12,13,14 |
Season 4 is the fourth season of Forensic Files, an American documentary-style television series which reveals how forensic science is used to solve violent crimes, mysterious accidents, and even outbreaks of illness.
The fourth series was broadcast weekly from October 1 –December 29, 1999 and consisted of Thirteen episodes which all covered a separate mystery.