The Trade Unions' Equestrian Complex (now Equestrian Complex «Bitsa» /ˈbiːtsə/) is an equestrian venue located near the Bitsa Park in the South District of Moscow city, Russia. During the 1980 Summer Olympics, it hosted the riding and running portions of the modern pentathlon events and all of the equestrian events except individual jumping.

The venue consisted of 45 ha (110 acres).