Mladen Naletilić Tuta (born 1 December 1946) was a Bosnian Croat paramilitary commander of the "Punishment Battalion" of the Croatian Defence Council (HVO).
Naletilić was born in Siroki Brijeg in Bosnia and Herzegovina. In his youth, Naletilić went to West Germany under Yugoslavian program of temporary work abroad with the "United Croats of Germany", a Croat emigration agency. He ran a casino in Singen, and, according to Miroslav Tuđman, Naletilić was also a pimp.
He cooperated with Bundesnachrichtendienst, a German intelligence agency, and the Bulgarian Committee for State Security.
In 1990 he returned to Croatia and in 1991 he founded a volunteer unit and named it "Convicts' Battalion" (Croatian: Kažnjenička bojna). In 1992 when Bosnian War started, "Convicts' Battalion" was replaced in Široki Brijeg (former Lištica) and they operated in Herzegovina. Members of the unit included foreign volunteers from Germany, the UK, France, Sweden, Paraguay and Argentina.
As part of the Croatian Defence Council ("Convicts' Battalion"), he fought against Yugoslav People's Army (JNA) and Army of Republika Srpska (VRS). He was his unit's commander, under general Ivan Andabak. He was a close friend of then-Croatian Minister of Defence Gojko Šušak. On 2 August 1992, Naletilić ordered his unit to assassinate Blaž Kraljević, general of the Croatian Defence Forces and general of the Army of Bosnia and Herzegovina (ARBiH), along with eight of Kraljević's staff. Naletilić rewarded twenty of the men in the unit with 5,000 Deutschmarks each. Kraljević had opposed attempts by Croatian president Franjo Tuđman and his Croatian Democratic Union (HDZ) party, as well as Mate Boban and Radovan Karadžić to divide Bosnia and Herzegovina.