Back may refer to:
In anatomy, the posterior side of the torso Torso

Torso is an anatomical term for the greater part of the human body without the head and limbs.... 

 in humans and other primates
* The human back Human back

The human back is the large posterior [i] area of the human body [i], rising from the top of the buttock [i] ... 

, the large posterior area of the human body
Back, a player's position in many ball games
Back, Outer Hebrides, a village on the Isle of Lewis, Scotland
The Backs The Backs

The Backs, or the Backs of the Colleges is an area of the city of Cambridge [i], England where sev ... 

, an area of Cambridge at the rear of several colleges by the River Cam