text: which religion is associated with the highest number of human casualities/fatalities:? christianity islam secular/agnostic/atheist hinduism buddhism chinese folk religion primal indigenous african traditional and diasporic sikhism juche spiritism judaism mormonism bahá'í faith jehovah's witnesses jainism shinto cao dai zoroastrianism tenrikyo neopaganism unitarian rastafari note: borrowed from the "religion wiki" list this is actually a tough question. judism was responsible for millions of deaths pre christianity and in christianities early days.  people keep talking about the holucost of the jews, but there was an even bigger and longer holucost then this one that you don't hear that often. for the first about 800 yrs of christianity, christians were hunted. yes the christian holucost was far worse then that of the jews.  then on the other hand, you have the christians, which were responsible for the crusades, the jewish holucost, burnings of witches, not to mention in some countries they persecuted you for not being christian.  but, my answer would still be the jews.  with that being said, both of these religions bad times were in the past. niether one is truely bad today. although there are some wars that state religion as a cause for them today; this is truelly not the case.  for instance, if you were to go up to the pope and ask him what he thinks about a war caused by christianity? he would probably say something like, no christianity does not believe in any kind of war. which in todays society is true.