Divalia Fossae /dɪˈveɪliə ˈfɒseɪ/ is the large series of parallel equatorial troughs on the giant asteroid 4 Vesta.

It is one of the longest chasms in the Solar System, stretching across roughly two-thirds of Vesta's equator.

Divalia Fossae consists of numerous—in some regions, up to seven—parallel troughs ranging from a few hundred meters to about 20.5 kilometers in diameter.

As such, early hypotheses of the origin of Divalia Fossae have invoked the impact event that created Rheasilvia, with energy from the impact event shattering Vesta's crust and leading to normal faulting along its equator.

[4][5] A second hypothesis instead proposes that Divalia Fossae represents a large series of crater chains (catenae) from the debris ejected by the formation of Rheasilvia.