Hello Neighbor is a survival horror stealth game developed by Dynamic Pixels and published by tinyBuild. Initially released as public alphas from 2016 to 2017, it received a full release for Windows and Xbox One on December 8, 2017, and later for PlayStation 4, Nintendo Switch, iOS, and Android on July 26, 2018.

The players controls Nicky Roth, who witnesses some strange happenings at his next-door neighbor's house. His goal is to successfully sneak into the basement of the neighbor's house to uncover a dark secret while avoiding being caught by the neighbor. The game's artificial intelligence (AI) modifies the neighbor's behavior based on the player's past actions, such as setting traps along paths the player followed in a previous attempt and also setting up some cameras.

While the initial alpha versions of Hello Neighbor were received positively, the final product was met with largely negative reviews. The gameplay, control scheme and technical performance have been heavily criticized, though the story, the story elements and the art style were praised. The game spawned a franchise, beginning with a prequel, Hello Neighbor: Hide and Seek, released in December 2018. Two multiplayer spin-offs, Secret Neighbor and Hello Engineer, were released in October 2019 and October 2021, respectively. A standalone sequel, Hello Neighbor 2, was released on December 6, 2022.