is a short-term detention facility in the United States and Canada.
Jail may also refer to:
In entertainment:
- Jail (1966 film), a 1966 Malayalam movie
- Jail (film), a 2009 Bollywood movie
- Jail (TV series), a reality television series
- Jail (Monopoly), a space on the board game Monopoly
In computing:
- Jail (computer security), a program resources sandbox mechanism
- Chroot jail, a command on Unix operating systems
- FreeBSD jail, a FreeBSD system-level virtualization mechanism