Pitt an haife shi ne a Shawnee, Oklahoma, zuwa William Alvin Pitt, mai mallakar kamfanin kamfani, da Jane Etta (née Hillhouse), mai ba da shawara a makaranta. Iyali ba da daɗewa ba suka koma Springfield, Missouri, inda ya zauna tare da 'yan uwansa, Douglas Mitchell (an haife shi a shekarar 1966) da Julie Neal (an haife shi a shekarar 1969). An haife shi a cikin gida mai ra'ayin mazan jiya, an tashe shi a matsayin Baptist na Kudancin amma tun daga lokacin ya bayyana cewa ba shi da "dangantaka mai kyau da addini" da kuma cewa ya "sanyi tsakanin agnosticism da atheism".
Jami'ar Missouri