Uncharted is an action-adventure video game series and media franchise published by Sony Interactive Entertainment and developed by Naughty Dog. Created by Amy Hennig, the Uncharted franchise follows a group of treasure hunters who travel across the world to uncover various historical mysteries. The series features historical fiction, elements of fantasy and folklore, and fictional characters alongside real-world historical figures and events. In the main series, players control Nathan Drake; in the expansion, players control Chloe Frazer.

The franchise's first game, Uncharted: Drake's Fortune, was released in 2007, and followed by the sequels Uncharted 2: Among Thieves (2009), Uncharted 3: Drake's Deception (2011), and Uncharted 4: A Thief's End (2016). Spin-offs Uncharted: Golden Abyss (2011), Uncharted: Fight for Fortune (2012), and the standalone expansion Uncharted: The Lost Legacy (2017) also support the main series. Originally published exclusively for PlayStation consoles, the franchise later released games for other platforms, with the mobile spin-off Uncharted: Fortune Hunter (2016) and remasters of A Thief's End and The Lost Legacy for Windows in 2022.

The main games are played from a third-person perspective, with gameplay mostly revolving around combat, shooting, exploration, and puzzles, while platforming is used to navigate the environment. Later titles began including competitive and co-operative multiplayer game modes, stealth, and driving gameplay. Uncharted drew inspiration from other games, film, and additional media, and is known for featuring exotic locations. Several adaptations of the series have also been released, including a live-action film, board games, comics, and a novel.

The main series received critical acclaim, with praise for the stories, characters, voice acting, gameplay, and graphics, with its high production value being frequently compared to Hollywood-produced action-adventure films, specifically the Indiana Jones series. It has also been credited by critics and publications for raising the standards of single-player action-adventure games, and its second and fourth numbered installments are consistently ranked among the greatest video games. Uncharted has shipped over 50 million units, making it one of the best-selling video game franchises, helping the success of PlayStation during the seventh and eighth generation and elevating Naughty Dog's reputation as a renowned game developer.

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Drake's Fortune, the first game in the series, was released for PlayStation 3 in November 2007. The system carried the following two installments of the main series, after Naughty Dog agreed to exclusively release the games on Sony systems. Among Thieves was published in 2009, and the creative team were afforded a greater license to utilize a larger amount of the system's random-access memory (RAM), due to an improved proprietary engine. It subsequently introduced more locales, higher free roam and combat abilities, and a larger map. Drake's Deception, released in 2011, built upon this aspect, while it also added an improved online multiplayer mode.

The following main installment, A Thief's End, was published on PlayStation 4, and focused on realism and detail. The last in the series to feature the main protagonist, it added driving elements and improved other gameplay aspects, like stealth and role-playing, and comprehensive upgrades to multiplayer. It was released to massive financial success, breaking multiple records. A free-to-play game for iOS and Android, Fortune Hunter, was released to tie in with A Thief's End.

Golden Abyss was published in 2011, and is the first in the series to be released on PlayStation Vita, marking the series' first on a handheld console. It is considered a prequel to the main series, although, some developers have stated that it acts as a separate, original story. In 2012, a turn-based card game titled Fight for Fortune was released. It was developed by One Loop Games, and contained interactive elements suitable for the Vita.