Ciudad Guayana is a city in Bolívar State, Venezuela. It stretches 40 kilometers along the south bank of the Orinoco river, at the point where it is joined by its main tributary, the Caroní river.

The Caroni crosses the city south-north and divides it on its two main halves: the old town of San Félix in the east, and the new town of Puerto Ordaz in the west. The city was officially founded in 1961 by the unification of this two former settlements, but the history of San Félix goes back to its foundation in 1724. Within the city limits are located the site of Cachamay Falls and Llovizna Falls. There are three bridges across the Caroni and the second crossing over the Orinoco, the Orinoquia Bridge, was inaugurated in the city in 2006. With approximately one million people, it is Venezuela's fastest-growing city[citation needed] due to its important iron, steel, aluminium and hydroelectric industries. Ciudad Guayana is one of Venezuela's five most important ports, since most goods produced in the industry-rich Bolívar state are shipped through it, as ocean-going vessels can sail to it from the Atlantic Ocean up the Orinoco river.