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Sordo
Location
Country	Italy
Physical characteristics
Mouth	Corno
• location	Serravalle di Norcia
• coordinates	42°47′08″N 13°01′13″E / 42.7855°N 13.0203°E / 42.7855; 13.0203
Basin features
Progression	Corno→ Nera→ Tiber→ Tyrrhenian Sea

The Sordo is a small river in eastern Umbria in Italy. Its source is about 1 km south of Norcia at an approximate altitude of 600 m (1950 ft), and it flows for about 7 km (4.3 mi) west to Serravalle where it empties into the Corno.