Ahmadiyya reshen Musulunci ne a Najeriya a ƙarƙashin khalifa a Landan. Membobin kungiyar galibi sun fito ne daga Yammacin Najeriya. A wani bangare na shirinta na taimakon jama'a, ƙungiyar ta gina makarantu goma da asibitoci biyu a cikin Apapa da Ojokoro, Jihar Lagos. Ƙaungiyar Ahmadiyya an kafa ta a Biritaniya ta Indiya ta hannun Mirza Ghulam Ahmad, wani mai kawo sauyi a cikin addinin Islama da kuma sufi, wanda a cikin 1891 ya yi iƙirarin cewa shi annabi ne, mujaddid ("mai sabuntawa"), kuma Masihi ko Mahadi da Musulmai suke tsammani. Harkar Ahmadiyya an tsara ta ne a Legas a cikin shekara ta 1916 amma akwai da yawa, duk da cewa ba masu sabani ba ne, yadda Ahmadiyya ta zo Najeriya. Wani bayani ya nuna cewa a cikin 1913, wani malamin makaranta da ake kira Hamid ya yi tuntuɓe na yaɗuwa da kwafin "Review of Religion", wata mujalla da ƙungiyar Ahmadiyya ta kafa a Qadian kuma ta fara tattaunawa da su.