Criminal: UK (or Criminal: United Kingdom) is a British police procedural television anthology series created by George Kay and Jim Field Smith, starring Katherine Kelly, Lee Ingleby, Mark Stanley, Rochenda Sandall and Shubham Saraf as the highly trained members of a special interrogative division of the Metropolitan Police. Netflix released the first series of three episodes on 20 September 2019 and a second series of four episodes on 16 September 2020.

It is part of Netflix's anthology series Criminal. The first series consisted of three episodes, the same as three other series with unrelated stories set in three countries and filmed in local languages: Criminal: France, Criminal: Spain, and Criminal: Germany.

The second series, which consisted of four episodes, received two nominations at the 2021 British Academy Television Awards: Best Supporting Actor for Kunal Nayyar and Best Supporting Actress for Sophie Okonedo.