Udrea Băleanu, also known as Băleanul, Banul Udrea, or Udrea of Băleni (? – ca. May 1601), was a Wallachian and Moldavian statesman and military commander. He was especially noted as a key supporter, and alleged uncle, of the unifying Prince Michael the Brave, serving under his command in the Long Turkish War. In the early stages of Michael's revolt against the Ottoman Empire, Băleanu drove the Wallachian military forces into Rumelia, relieving Nikopol. He served as "Ban" of Oltenia, then commanded supporting contingents in the 1599 campaign to annex Transylvania. The following year, Michael employed him as one of his four regents in Moldavia, and also made him commander of the Moldavian army, with the title of "Hetman". This assignment made Băleanu a direct enemy of the Movilă dynasty, which claimed the Moldavian throne, and of the Movilăs' backers in the Polish–Lithuanian Commonwealth.