Bazilikar Bitrus ko Babban cocin Bitrus, (Turanci Papal Basilica of St. Peter in the Vatican), ginin Coci ne dake a birnin Vatican wanda yake cikin birnin Rome. An gina Cocin cikin salon gini na Renaissance. Donato Bramante, Michelangelo, Carlo Maderno da Gian Lorenzo Bernini ne suka tsara ginin Cocin. ginin na daga cikin jerin manya manyan gine gine a duniya. Ana kiran Cocin da Uwar Cocinan Katolika, sannan tana daya daga majami'u masu tsarki a duniyar Kiristoci. Babbar Cocin Saint Peter's Basilica ita ce coci mafi girma a duniya, wanda kuma take a kasar Vatican- kasa mafi kankanta a duniya- wadda take a cikin birnin Rum dake Italy. Birnin Vatican shi ne hedikwatar Cocin Katolika kuma mazaunar Fafaroma. Mabiya addinin Kirista musamman ma 'yan darikar Katolika, na matukar girmama majami'ar St. Peter's kuma sun amince cewa an gina cocin ne a kan kabarin Peter, shugaban sahabban Annabi Isa 12 kuma Fafaroma na farko, wanda kuma ake tunanin cewa shi ne jagoran addinin kirista na farko. Mabiya Katolika sun amince kabarin na dai-dai karkashin mumbari mafi tsawo a majami'ar.