A Spy Among Friends is a British espionage thriller television series, starring Guy Pearce, Damian Lewis, and Anna Maxwell Martin.

In 1963, Nicholas Elliott (Lewis) is working for Britain's Secret Intelligence Service (SIS) as an intelligence officer and is left in turmoil when he learns his close friend and colleague, Kim Philby (Pearce), has been secretly working as a double agent for the KGB since 1934.

[8] Critical reception of A Spy Among Friends was mixed, with Rebecca Nicholson of The Guardian writing, "There are plenty of small thrills to be had from a world built on codes and double meanings.

"[9] Stephanie Bunbury of Deadline Hollywood wrote that the "unfolding of their negotiations" was "not seat-of-your-pants televisual excitement, but it is the stuff of sustained intrigue".

[12] The series was nominated in the best mini-series category at the British Academy Television Awards, announced in March 2023.