The Varatella (or Varatello) is a stream of Liguria (Italy).
The river is formed at elevation by the confluence of two streams, Rio della Valle and Rio di Carpe, in the comune of Toirano. The river then flows through the Valle Varatella and crosses the centre of Toirano, where it receives from right the waters of rio Barescione, its main tributary. Heading south-east the Varatella reaches Borghetto Santo Spirito and ends its course in the Ligurian Sea, after being crossed by Autostrada A10, GenoaâÂÂVentimiglia railway and Aurelia national road.
Varatella basin () is totally included in the Province of Savona.