Persona (ペルソナ, Perusona), formerly marketed in Western territories as Shin Megami Tensei: Persona, is a series of role-playing video games developed and primarily published by Atlus. The series is a spin-off from Atlus' Megami Tensei franchise. The first entry in the series, Revelations: Persona, was released in 1996. There have since been eight further console titles (four main entries and four console spin-off titles), with another (Persona 5) in development. The series takes its title from the beings used by characters in battle, manifested from a character's personality.

Persona began as a spin-off based on the high school setting of Shin Megami Tensei if.... Its trademark features include a high school setting, a group of students as the protagonists, a silent protagonist similar to the mainline Megami Tensei franchise, and combat using Personas. Since the release of Persona 3 in 2006, the main series has used a social simulation function called Social Links, which is directly linked to how Personas evolve. Central character designs are by series co-creator Kazuma Kaneko (Persona and the Persona 2 games) and Shigenori Soejima (Persona 3 onwards). Its overall theme is exploration of the human psyche and how the characters find their true selves. The series' recurring concepts and design elements draw on Jungian psychology and archetypes, along with multiple world mythologies and popular literature.

Shin Megami Tensei: Persona 4 (ペルソナ4, Perusona Fō) is a role-playing video game developed and published by Atlus for Sony's PlayStation 2, and chronologically the fifth installment in the Persona series, itself a part of the larger Megami Tensei franchise. Persona 4 was released in Japan in July 2008, North America in December 2008, and Europe in March 2009, and was later re-released on the PlayStation Network in April 2014. An enhanced remake for the PlayStation Vita, Persona 4 Golden, was released in Japan in July 2012, North America in November 2012, and in Europe in February 2013.

Persona 4 takes place in a fictional Japanese countryside and is indirectly related to earlier Persona games. The player-named main protagonist is a high-school student who moved into the countryside from the city for a year. During his year-long stay, he becomes involved in investigating mysterious murders while harnessing the power of summoning Persona. The game features a weather forecast system with events happening on foggy days to replace the moon phase system implemented in the previous games.

Shin Megami Tensei: Persona 3 (ペルソナ3, Perusona Surī) is a role-playing video game developed by Atlus, and chronologically the fourth installment in the Persona series, a subseries of the Megami Tensei franchise. Persona 3 was originally published in 2006 on the PlayStation 2 by Atlus in Japan; the North American release of the game was delayed due to issues with the publication of the official art book. An add-on disc entitled Persona 3 FES, containing a "director's cut" of the original game, as well as a new epilogue, was released alongside Persona 3 in Japan in 2007, and in 2008 in other territories, with a re-release of FES on the PlayStation Network in 2012.

In Persona 3, the player takes the role of a male high-school student who joins the Specialized Extracurricular Execution Squad (SEES), a group of students investigating the Dark Hour, a time period between one day and the next that few people are aware of. During the Dark Hour, the player enters Tartarus, a large tower containing Shadows, creatures that feed on the minds of humans. To fight the Shadows, each member of SEES is able to summon a Persona, a manifestation of a person's inner self. The game's most iconic feature is the method by which the members of SEES release their Personas: by firing a gun-like object called an Evoker at their head. In addition to the standard elements of role-playing games, Persona 3 includes elements of simulation games, as the game's protagonist progresses day by day through a school year, making friends and forming relationships that improve the strength of his Personas in battle.