Acadera

{{Short description|Region in the northwest of India}}

{{Use dmy dates|date=July 2019}}

{{For|Andaca, a synonym for a genus of plants|Lotus (genus)}}

Acadera or Acadira was a region in the northwest of India, traversed by Alexander the Great as related by first-century Roman historian Quintus Curtius Rufus.Quintus Curtius Rufus, Histories of Alexander the Great, 8.10.19. Arrian describes it not as a region but as a city he terms Andaca, which Alexander took by storm,{{cite book|author=Arrian|title=Arrian's History of Alexander's Expedition|chapter-url=https://books.google.com/books?id=d5peAAAAcAAJ&q=Acadera+Arrian&pg=PA244|accessdate=15 August 2018|chapter=4.23|year=1814}} during the Cophen Campaign, 327 BCE to 326 BCE.