100 Code (also known as The Hundred Code) is an internationally co-produced Swedish crime drama series, developed by Bobby Moresco, that first aired on German premium channel Sky Krimi on May 14, 2015. The series, which stars German-born British actor Dominic Monaghan and the late Swedish actor Michael Nyqvist, is based upon Ken Bruen's 2014 novel Merrick, and follows Tommy Conley (Monaghan), an NYPD detective who travels to Stockholm to advise and investigate a particularly gruesome series of murders.

The series was broadcast on Sky Atlantic in the United Kingdom, airing weekly from January 6, 2016. A DVD release of the complete series was released on October 30, 2015 in Germany, and on March 28, 2016 in the UK. The series premiered in the United States on WGN America on May 29, 2018.