A cikin Islama, munafiqun ('munafukai', Larabci: منافقون , mufuradi منافق munāfiq) ko Musulmin ƙarya ƙungiya ce da aka yanke hukunci a cikin Alƙur'ani a matsayin Musulmai na waje waɗanda ke ɓoye kafirci a ciki kuma suna ƙoƙari don ɓata al'ummar Musulmi. Munafiq mutum ne wanda a bainar jama'a da cikin al'umma ke nuna cewa shi Musulmi ne amma ya ƙi Musulunci ko yaɗa shi a kansa ko a cikin zuciyarsa ko a tsakanin makiyan Musulunci. Ita kanta munafunci ana kiranta nifāq (نفاق). Munafunci ga Allah dangane da ainihin bangaskiya. (Q2: 8) da (Q2: 14) Munafunci game da rukunan imani: alal misali, wani na iya yin imani da Allah, Ranar Shari'a, lissafi, ma'aunin ayyuka da Jahannama (tare da rashin tabbas da shakku) amma kada ku ji tsoron su ko kaɗan (a zahiri) ko kuma ku guji aikata zunubai saboda daga cikinsu. Amma duk da haka yana da'awar, "Ina tsoron Allah." Munafunci ga wasu: wani yana da fuska biyu da harshe biyu.