"Hot Coffee" is the unofficial name for a minigame in the 2004 action-adventure video game Grand Theft Auto: San Andreas by Rockstar Games. While it was not playable in the official game release, the modding community discovered hidden code that, when enabled, allows protagonist Carl "CJ" Johnson to have animated sexual intercourse with his in-game girlfriend.

Rockstar Games president Sam Houser wanted to include more role-playing elements in San Andreas while also pushing the Grand Theft Auto series' controversial reputation. The development team was forced to curtail the nudity and sexual content of Houser's original vision, however, to obtain a "Mature" rating from the Entertainment Software Rating Board (ESRB). Rather than removing the content, the developers made it inaccessible to players. Modders discovered the code on the game's PlayStation 2 release, and when San Andreas was released for Windows, modder Patrick Wildenborg disabled the controls around the code. He released this modified code online under the name "Hot Coffee".

The discovery of the "Hot Coffee" minigame resulted in intense legal backlash for Rockstar Games and their parent company, Take-Two Interactive. While both companies remained mostly silent on the matter, Rockstar Games released a statement claiming that modders were responsible for the minigame. The ESRB re-rated the game "Adults Only" after an investigation, while the game was banned entirely in Australia until the explicit content was removed. Rockstar Games and Take-Two received a warning from the Federal Trade Commission (FTC) for failing to disclose the extent of graphic content present in the game, while a class action lawsuit alleged that the company had misled customers who believed the game's content fell along the lines of a "Mature" rating.

"Hot Coffee" had a major impact on the video game industry. Rockstar Games's refusal to publicly comment on the matter was poorly received by the industry and modding community, while the ESRB announced fines of up to US$1 million for game developers who failed to disclose the extent of their graphic content. "Hot Coffee" reappeared in future Rockstar Games releases: A similar mod for Red Dead Redemption 2 was posted on Nexus Mods in 2020 and subsequently taken down by Rockstar Games, while 2021's Grand Theft Auto: The Trilogy – The Definitive Edition, which includes a remaster of San Andreas, was briefly removed from sale after data miners discovered the code associated with "Hot Coffee".

Rockstar Games, a subsidiary of Take-Two Interactive, released the action-adventure video game Grand Theft Auto: San Andreas for the PlayStation 2 on 26 October 2004. The game was subsequently released for Windows and the Xbox on 7 June 2005. The fifth instalment in the Grand Theft Auto video game franchise and a sequel to 2002's Grand Theft Auto: Vice City, San Andreas expanded upon its predecessor with a virtual world four times larger than Vice City, as well as the introduction of more role-playing elements for its player character, Carl "CJ" Johnson. Prior to the release of San Andreas, the Grand Theft Auto series was popular among the modding community, with players known as "modders" hacking into a game's source code and creating modifications, or "mods". By introducing in-game character customisation options, San Andreas made game mods more accessible to those outside of the hacking community. Rockstar Games's president Sam Houser told reporters before the game's release that he "wanted to blur the lines more between what was in-mission and part of the story and your 'leisure time' in the game ... all of your actions feel like they have consequences, and you are always in the world".

San Andreas begins with CJ returning to his home state, the fictional San Andreas. Although there is an overarching plot, San Andreas is primarily an open world game, where narrative missions are supplemented by other activities and interactions that have little bearing on the primary mission. One open world task in which CJ may participate is romantic. San Andreas contains six unlockable girlfriends that can be discovered either through completing missions or by exploring the virtual world. Each girlfriend has preferences for CJ's appearance and date activities; if CJ impresses the girlfriend by catering to these preferences, the player unlocks certain rewards. When CJ has sufficiently impressed one of these girlfriends, she will invite him home "for some coffee", a euphemism for sexual intercourse. In the unmodified version of the game, the player hears muffled sexual sounds from inside the house, while the camera remains outside the front door and no explicit content is visible.

The modified version of San Andreas replaces this censored cutscene with the unused minigame found in the code. After receiving fellatio from his girlfriend, CJ assumes the missionary position. Both characters remain clothed as the player is instructed to "push the left analog stick up and down in rhythm", which increases CJ's progress on a bar graph labelled "Excitement". Button controls allow the player to change the camera angle or the sex position. If the excitement bar reaches completion, CJ's girlfriend and the game congratulate the player; if the meter empties, the player is criticised for "failure to satisfy a woman". There is also an erotic spanking mini-game in which the player must press buttons in rhythm, which results in CJ spanking his girlfriend and her excitement bar increasing.

The first commercially successful game in the Grand Theft Auto series was Grand Theft Auto III. Upon its 2001 release, the graphic violence and sexual content in the game were met with controversy from politicians and other public figures such as Joe Lieberman and Jack Thompson. Both Grand Theft Auto III and its sequel Vice City received commercial success but faced scrutiny, particularly among those concerned about the impact of violent video games on children. Both games received an "M" ("Mature 17+") rating from the Entertainment Software Rating Board (ESRB) in the United States, and Houser responded to the criticism by stating that the Grand Theft Auto series, and video games as a medium, were not designed for children.