Hudinja is a Slovene name that may refer to:
The Hudinja (pronounced [xuˈdiːnja]) is a river in Styria, Slovenia. The river is 32 kilometres (20 mi) in length. Its source is on the Pohorje Massif southwest of Mount Rogla, about 1350 m above sea level, near the source of Dravinja River. The river passes Vitanje, Socka Castle, Vojnik, and Celje, where it merges with the Savinja. A district of Celje also named Hudinja lies on the river.
Coordinates: 46°14′N 15°17′E / 46.233°N 15.283°E / 46.233; 15.283
Hudinja (pronounced [xuˈdiːnja]) is a district (mestna četrt) along the Hudinja in the northern part of Celje, Slovenia. Hudinja consists of two informal parts: Spodnja Hudinja (literally, 'Lower Hudinja') and Zgornja Hudinja (literally, 'Upper Hudinja'). It is named after the Hudinja River, a tributary of the Savinja, which flows through it. Zgornja Hudinja was an independent settlement until 1982.
A modern sports center was recently built in Hudinja. The main buildings are the Arena Petrol football stadium (built between 1999 and 2003) and the Zlatorog Arena.
Coordinates: 46°14′55.26″N 15°16′34.05″E / 46.2486833°N 15.2761250°E / 46.2486833; 15.2761250