Cibiyar Broca, wanda kuma aka sani da yankin Broca, yanki ne na kwakwalwa wanda yake a gefen hagu na lobe na gaba. Ita ce ke da alhakin samar da harshe da magana, musamman ikon fayyace da tsara kalmomi. Sunan cibiyar Broca bayan likitan Faransanci kuma masanin ilimin halittar jiki, Paul Broca, wanda ya fara gano wannan yanki a cikin karni na 19. Lalacewa ga cibiyar Broca na iya haifar da rashin lafiyar harshe da ake kira Broca's aphasia, wanda ke haifar da matsala wajen samar da harshe amma an kiyaye shi sosai.