"San Junipero" is the fourth episode in the third series of the British science fiction anthology television series Black Mirror. Written by series creator and showrunner Charlie Brooker and directed by Owen Harris, it premiered on Netflix on 21 October 2016, with the rest of series three.

The episode is set in a beach resort town named San Junipero, where the introverted Yorkie (Mackenzie Davis) meets the more outgoing Kelly (Gugu Mbatha-Raw). The town is part of a simulated reality the elderly can inhabit, even after death. "San Junipero" was the first episode written for series three of Black Mirror; initial drafts were based on nostalgia therapy and designed as a 1980s period piece. The first script was about a mixed-sex couple and had an unhappy ending; the final version was about a same-sex couple and had a happy ending. Filming took place in London and Cape Town across a few weeks. The soundtrack interweaves 1980s songs with an original score by Clint Mansell.

The episode received critical acclaim, with particular praise for Mbatha-Raw and Davis' performances, its plot twist, its visual style, and its uplifting tone (atypical for the show). It had higher critical ratings than the show's other episodes, while some critics considered it one of the best television episodes of 2016. In addition to several other accolades, "San Junipero" won two Primetime Emmy Awards for Outstanding Television Movie and Outstanding Writing for a Limited Series, Movie, or Dramatic Special.