The Old Man is a stand-alone thriller novel by Thomas Perry, published by the Mysterious Press imprint of Grove Atlantic in January 2017.

A television adaptation of the same name starring Jeff Bridges aired on FX beginning June 2022.

Former army intelligence officer Michael Kohler, who now goes by the name Dan Chase, lives in Norwich, Vermont with his two dogs.

They also praised the "refreshing" unconventionality of an older action protagonist and the novel's "palpable" tension.

[3] The novel was developed into a television series of the same name by Jonathan E. Steinberg and Robert Levine, with Jeff Bridges starring as the lead.