Costea Bucioc or Coste Băcioc (also known as Büczek;? – July or September 1620) was a Moldavian statesman, commander of the military forces, and father-in-law of Prince Lupu (Vasile) Coci. He began his political career in the 1580s, emerging in the late 1590s as an ally of the Movilești dynasty, with then-Prince Ieremia Movilă advancing him to the post of Clucer. From 1601, he was Constantin Movilă's Paharnic, receiving from him the estate of Deleni and other villages around Hârlău, which formed part of a Bucioc domain that also extended into Bukovina and Bessarabia. Together with the Movilești, he became one of the great landowners of his generation, and one of the first Moldavian boyars known to have owned serfs. Some of his assets went into refurbishing , of which he was patron, or ktit