Yakin basasar Amurka wani babban rikici ne da aka gwabza a kasar Amurka daga 1861 zuwa 1865. Yaki ne da aka yi tsakanin Jihohin Arewa da aka fi sani da ‘Union’ da kuma Kudancin Kasar da aka fi sani da ‘Confederacy’ a kan batutuwa kamar su. haƙƙin jihohi, bauta, da ikon gwamnatin tarayya. Yakin ya yi sanadin mutuwar sojoji da fararen hula kimanin 620,000 tare da kawo karshen bautar da ake yi a Amurka.