English: Sipahi (Ottoman Turkish: سپاهی; also transliterated as Spahia or Spahiu in Albanian, Spahi, Sepahi, and Spakh) was the name of an Ottoman cavalry corps.

In the form of "Spahi" it was the title given to several cavalry units serving in the French and Italian colonial armies during the nineteenth and twentieth centuries.

The name ultimately derives from the Persian: سپاه (sepâh, meaning "army") and has the same root as the English term "sepoy".