Ținutul Mureș (or Ținutul Alba Iulia) was one of the ten ținuturi ("lands") of Romania, founded in 1938 after King Carol II initiated an institutional reform by modifying the 1923 Constitution and the law of territorial administration. It comprised most of Transylvania, and included parts of the Székely Land. Its capital was the city of Alba-Iulia. Ținutul Mureș ceased to exist following the territorial losses of Romania to Hungary and the king's abdication in 1940.