Liwa or Liwa' is an Arabic term meaning district, banner, or flag, a type of administrative division. It was interchangeable with the Turkish term "Sanjak" in the time of the Ottoman Empire. After the fall of the empire, the term was used in the Arab countries formerly under Ottoman rule. It was gradually replaced by other terms like qadaa and mintaqa and is now defunct. It is only used occasionally in Syria to refer to the Hatay Province, ceded by the French mandate of Syria to Turkey in 1939, at which time was known as Liwa' Iskenderun.

Sanjaks (, ) were administrative divisions of the Ottoman Empire. Sanjak, and the variant spellings sandjak, sanjaq, and sinjaq, are English transliterations of the Turkish word sancak, meaning district, banner, or flag. Sanjaks were also called by the Arabic word for banner or flag, liwa.