A Good Man (Spanish: Un buen hombre) is a 2009 Spanish thriller film directed and written by Juan Martínez Moreno [es] which stars Tristán Ulloa and Emilio Gutiérrez Caba alongside Nathalie Poza and Alberto Jiménez.

The plot explores the moral dilemma experienced by staunchly Conservative law lecturer Vicente (close to getting a chair) as he witnesses colleague, professor, close friend and father figure Fernando killing her wife Paula in cold blood.

[6] Shooting locations included the Ciudad de la Luz studio in Alicante as well as the province of A Coruña, Galicia.

[12] Javier Ocaña of El País deemed A Good Man to be a "failed" film, which despite a first hour "described with a certain verisimilitude, enhanced by the good work of the [actors playing the] four main characters" ends ups falling apart, featuring a nonsensical scene under the rain.

[13] Irene Crespo of Cinemanía rated the film 2½ out of 5 stars, underscoring it to be "a correct psychological thriller corroded by guilt".