Yaƙin basasa na Lebanon (Arabic: الحرب الأهلية اللبنانية <unk> Al-Ḥarb al-Ahliyyah al-Libnāniyyah) ya kasance yaƙin basasa mai yawa a Lebanon, wanda ya kasance daga 1975 zuwa 1990 kuma ya haifar da kimanin mutane 120,000. Ya zuwa shekara ta 2012, kimanin mutane 76,000 sun kasance masu gudun hijira a cikin Lebanon. Akwai kuma ƙaura na kusan mutane miliyan daya daga Lebanon sakamakon sakamakon yakin. Kafin yakin, Lebanon ta kasance mai yawan bangarori, tare da Musulman Sunni da Krista masu rinjaye a garuruwan bakin teku, tare da Musulman Shia da ke kudu da kwarin Beqaa zuwa gabas, tare da yawan mutanen dutsen da ke yawanci Druze da Krista. Gwamnatin Lebanon ta kasance a karkashin jagorancin Krista na Maronite.
1948 da kuma 1967