Pacman may refer to any of the following:
1. Pacman, the package manager of Arch Linux can be used to download, install, update, and uninstall compiled binary software packages on an Arch Linux system. It ensures that any necessary dependencies are also installed, updated, or uninstalled as necessary. Pacman packages use the extension .pkg.tar.gz, and the client command is pacman.
2. Pac-Man, a single-player arcade video game released by Namco in 1980. In the game, a yellow, circular character navigates a maze, eating pellets and fruit, avoiding ghosts and occasionally eating them. One of the most iconic video games of all time, players have spent over $2.5 billion in quarters playing Pac-Man worldwide.