Aninoasa (Hungarian: Aninósza or Aninószabányatelep) is a town in Hunedoara County in the Transylvania region of Romania. The town is located in Jiu Valley, which is a coal basin, and many of the towns residents are coal miners. Most of the town was built along Aninoasa creek, and the town is actually separated into two areas by the West Jiu River. "Anin" means "alder tree" in Romanian.
Aninoasa is the oldest town in Hunedoara County, being mentioned as far back as 1453 AD. It administers one village, Iscroni (Alsóbarbatyeniszkrony). At the 2011 census, 88.18% of inhabitants were Romanians, 7.1% Roma and 4.18% Hungarians.