The Geoagiu (Hungarian: Gyógy-patak or Diódi-patak) is a right tributary of the river Mureș in Transylvania, Romania. It discharges into the Mureș in Teiuș. Its length is 49 km (30 mi) and its basin size is 187 km2 (72 sq mi).

Tributaries

The following rivers are tributaries to the river Geoagiu: