Yunkurin Juyin mulkin Najeriyar a shekarar alif 1976 wani yunkuri ne na juyin mulkin soja wanda aka yi a Najeriya a ranar 13 ga watan Fabrairun shekarar alif 1976 lokacin da wani bangare na hafsoshin Sojoji, karkashin jagorancin Laftanar Kanar Buka Suka Dimka, suka yi yunkurin hambarar da gwamnatin Janar Murtala Mohammed. (wanda shi da kansa ya karɓi mulki a juyin mulkin 1975 ). An kashe Mohammed ne a Legas, tare da mai taimaka masa a- Laftanar Akintunde Akinsehinwa, lokacin da aka yi wa motar tasa kwanton-bauna a Ikoyi a kan hanyar zuwa Barikin Dodan, ta hanyar wasu sojoji karkashin jagorancin Dimka. A wani shiri da ya shirya wa kasar, Dimka ya ambaci cin hanci da rashawa, yanke hukunci, kamewa da tsarewa ba tare da gurfanar da shi gaban kotu ba, rauni daga bangaren Mohammed da rashin tsari baki daya a matsayin dalilan kifar da gwamnatin. Sojojin gwamnati sun murkushe yunkurin juyin mulkin sa’o’i da yawa bayan haka. Bayan farautar makonni uku, an kama Dimka a kusa da Abakaliki da ke kudu maso gabashin Najeriya a ranar 6 ga Maris 1976.