A Bounding Volume Hierarchy (BVH) is a data structure used in computer graphics and computational geometry to organize objects in a scene. It groups objects into a hierarchy of bounding volumes, which are simple shapes like spheres or boxes that enclose the actual objects. This organization helps in efficiently determining which objects need to be checked for intersections during rendering or collision detection. The primary advantage of a BVH is that it reduces the number of calculations needed by allowing algorithms to quickly eliminate large groups of objects that do not intersect with a given ray or point. This is particularly useful in applications like ray tracing and physics simulations, where performance is critical.