Silent Witness is a British television drama. The following is a list of all episodes that have been broadcast across all television series, since the series began on 21 February 1996. The first seven series featured Amanda Burton in the lead role. Following Burton's departure (in series 8, episode 2), Emilia Fox joined the show (in series 8, episode 5) as new forensic pathologist Nikki Alexander and as of 2023 is still in the series. In the first episode of series 6, William Gaminara and Tom Ward both joined the series. After series 15, Ward left the show to pursue other projects. He was replaced by David Caves and Liz Carr who both joined the show in series 16. Gaminara left the show at the end of series 16 and was replaced by Richard Lintern from series 17. Both Lintern and Carr left the show at the end of series 23.

The series has been released on BBC DVD since July 2006, usually with two series being released together in one box set. This practice has stopped and series 17 onwards have been released as single DVDs (as was the case for series 1 and 2). Silent Witness's stories usually consist of two episodes to one story, with each part lasting 60 minutes, while series 25 is one story in six 1-hour episodes.