The Șieu is a left tributary of the river Someșul Mare in Romania.[1][2] It discharges into the Someșul Mare near Beclean. Its length is 71 km (44 mi) and its basin size is 1,818 km2 (702 sq mi).[2]
The following towns and villages are situated along the river Șieu, from source to mouth: Șieu, Mărișelu, Șieu-Măgheruș, Șieu-Odorhei, Șintereag.
The following rivers are tributaries to the river Șieu:[2]
Left: Dipșa, Bretea, Agriș
Right: Ardan, Măgura, Budac, Bistrița, Măgheruș, Rosua