A daimyō (大名, daimyō, English TV: Feudal Lord, Literally meaning: Great Name) is the political leader of a country. A daimyō is responsible for all decisions concerning their country, from alliances to the annual budget to the privileges allowed to the country's hidden village. Daimyō are therefore one of the single most important individuals in the entire country, such that daimyō are given special protection by the Allied Shinobi Forces during the Fourth Shinobi World War.
Daimyō frequently attend the final round matches of the Chūnin Exams, either to bet on the fights or to seek out up-and-coming talent. In Shikamaru Hiden, daimyō are noted to always reside in their country's capital city, constantly waited upon by numerous attendants and advisers who, themselves, tend to be overbearing and arrogant to the general population. Gengo blames daimyō for the world's many conflicts, as daimyō tend to squabble between themselves that they then send shinobi to sort out. Because the daimyō don't personally involve themselves in these wars, they never truly appreciate the horrors of battle and thus inevitably get into some other petty conflict at some future date.