The King of San Gregorio (Spanish: El rey de San Gregorio) is a 2005 Chilean romantic drama film directed by Alfonso Gazitúa (in his directorial debut) and written by Gazitúa & Christian Morales.

[2] It is about the love story between two people with mental and physical disabilities in the town of San Gregorio, Chile.

[3] Pedro, a thirty something resident of San Gregorio, who struggles to overcome physical and slight mental impairments, and Cati, a girl with a severe intellectual disability, whom Pedro refers to, dotingly, as his "princess".

Together, the two must counter opposition to the relationship posed by Pedro's mother, María, and Cati's sister – who worries openly about the role that Cati's erogenous arousal will play in the romance.

Through it all, however, Pedro vows to make the relationship work no matter the cost.