The Last of Us is an action-adventure video game series and media franchise created by Naughty Dog and published by Sony Interactive Entertainment. The series is set in a post-apocalyptic United States ravaged by cannibalistic humans infected by a mutated fungus in the genus Cordyceps. It follows several survivors, including Joel, a smuggler who lost his daughter during the outbreak; Ellie, a young girl who is immune to the infection; and Abby, a soldier who becomes involved in a conflict between her militia and a religious cult. The games use a third-person perspective in which the player fights against hostile humans and cannibalistic creatures with firearms, improvised weapons, and stealth.

Naughty Dog, LLC is an American first-party video game developer based in Santa Monica, California. Founded by Andy Gavin and Jason Rubin in 1984, the studio was acquired by Sony Computer Entertainment in 2001. Gavin and Rubin produced a sequence of progressively more successful games, including Rings of Power and Way of the Warrior in the early 1990s. The latter game prompted Universal Interactive Studios to sign the duo to a three-title contract and fund the expansion of the company.