Hindush (Old Persian: 𐏃𐎡𐎯𐎢𐏁 Hidūš)[a] was an administrative division of the Achaemenid Empire in modern-day Pakistan.

[4] The -sh suffix is common among the names of many Achaemenid provinces, such as Harauvatish (the land of Harauvati or Haraxvaiti, i.e., Arachosia) or Bakhtrish (Bactria).

More precisely, they called the people of the province as 'Indians' ('Ινδοι, Indoi[5]) The loss of the aspirate /h/ was probably due to the dialects of Greek spoken in Asia Minor.

[8] The territory of Hindush may have corresponded to the area covering the lower and central Indus basin (present day Sindh and the southern Punjab region of Pakistan).

[16] At the final Battle of Platea (479 BCE), they formed one of the main corps of Achaemenid troops (one of "the greatest of the nations").