Back control in Braziliian Jiu-Jitsu is a control position that typically consists of your chest being pressed against the opponents back, with your legs looped over their legs, otherwise known as "hooks", and some form of control of their arms, usually one arm overhooking one of their arms and your other arm underhook the other of their arms, with hands clasped, known as "seatbelts".

Back control is an especially effective control position in for deploying submissions where the opponent is not facing you and so can't always effectively see or respond to submission attempts. Other than mount control, it is regarded as both one of the most beneficial (for you) and dangerous (for the opponent), and thus dominant, control positions in Brazilian Jiu-Jitsu.

One of the most popular and effective submissions from a back control is the rear naked choke (RNC), known "hadaka-jime" in Judo, where you achieve a figure-four lock of your arms around your opponents neck, sometimes also known in Portuguese as "Mata leão", or lion killer.