Toroanui Falls is one of two waterfalls found along the Ōkiritoto Stream (also known as the Muriwai Stream) in the Auckland Region of New Zealand's North Island.

It sits along the middle reaches of the stream, where the waterway flows westward toward Muriwai Beach after collecting water from the Rauratawa Stream in rural Rodney District.

The Ōkiritoto Stream ultimately empties into Muriwai Beach at Muriwai Regional Park, north of the Muriwai Golf Course. Toroanui Falls shares the stream corridor with the neighboring Ōkiritoto Falls, making this stretch a notable natural feature of the area.