An electric fence is a boundary barrier that administers electric shocks to any animals or people that attempt to cross it. The shock's voltage might cause anything from discomfort to death. However, they are also employed to defend high-security locations like military sites or prisons, where potentially fatal voltages may be used, such as agricultural fencing and other kinds of non-human animal control.

A gate that can be opened and closed electrically is referred to as an electric gate.