I was recently challenged by an unbelieving friend that Hitler was a Christian. My response was: “As far as Hitler, he may have called himself a Christian, but he persecuted the Jews. Do you really think that a man who tortured, experimented on, and sought to eliminate the Jews would follow the teachings of the Jew, Jesus of Nazareth?”
Dr. Frank Turek puts it more succinctly in his book Stealing from God: “…please don’t tell me Hitler was a Christian. David Silverman suggested that in our debate, and it’s completely contrary to the facts. Hitler may have used religious language for political gain. But does anyone really think that Hitler was sincerely and consistently worshiping a Jew whose guiding principle was to love God and your neighbor as yourself? Whatever Hitler believed, it wasn’t orthodox Christianity…Hitler called Christianity one of the great ‘scourges’ in history and wanted Germans to be the ‘only people immunized against this disease.'” 
But why should you lend credence to my opinion or even that of Dr. Turek? Let’s let Adolph Hitler speak for himself. The book, Hitler’s Secret Conversations 1941-1944 published by Farrar, Straus and Young, Inc.first edition, 1953, contains Hitler’s real views. The book was published in Britain under the title, _Hitler’s Table Talk 1941-1944, which title was used for the Oxford University Press paperback edition in the United States.
Hitler says, “National Socialism and religion cannot exist together…. The heaviest blow that ever struck humanity was the coming of Christianity. Bolshevism is Christianity’s illegitimate child. Both are inventions of the Jew. The deliberate lie in the matter of religion was introduced into the world by Christianity…. Let it not be said that Christianity brought man the life of the soul, for that evolution was in the natural order of things.” (p 6 & 7)
“Christianity is a rebellion against natural law, a protest against nature. Taken to its logical extreme, Christianity would mean the systematic cultivation of the human failure.” (p 43)
“Christianity is rebellion against this constitution, a protest against the creation; performed consistently, it would lead to the breeding of inferior.” (p 76)
“The best thing is to let Christianity die a natural death…. When understanding of the universe has become widespread… Christian doctrine will be convicted of absurdity…. Christianity has reached the peak of absurdity…. And that’s whysomeday its structure will collapse…. …the only way to get rid of Christianity is to allow it to die little by little….Christianity the liar…. We’ll see to it that the Churches cannot spread abroad teachings in conflict with the interests of the State.” (p 49-52)
“The reason why the ancient world was so pure, light and serene was that it knew nothing of the two great scourges: the pox and Christianity.” (p 96)
As is evident, Adolph Hitler was not only not a Christian, he was anti-Christian.
 Frank Turek, Stealing from God, p. 119.