Absolutely not.
They are polytheists and therefore CANNOT be Christian.
As I have posted here before, I once heard a Mormon elder explain that “Earth’s God” was sent here by “Twelve other gods.”
Here follow direct quotes from Mormon religion's first great liar, Joseph Smith, then the sleazy parsing of subsequent LDS leaders ... pay close attention to the parsing their peepstone liar uses with the term 'in the beginning':
In the beginning, the head of the Gods called a council of the Gods; and they came together and concocted a plan to create the world and people it. (Joseph Smith, Journal of Discourses, Vol. 6, p. 5, 1844)"I will go back to the beginning, before the world was, to show what kind of a being God is. What sort of a being was God in the beginning? ... God himself was once as we are now, and is an exalted Man, and sits enthroned in yonder heavens. That is the great secret. (Joseph Smith, Journal of Discourses, Vol. 6, p. 3, 1844)
"I learned a testimony concerning Abraham, and he reasoned concerning the Gods of heaven. '...Intelligences exist one above another, so that there is no end to them.' If Abraham reasoned thus--If Jesus Christ was the Son of God, and John discovered that God the Father of Jesus Christ had a Father, you may suppose that He had a Father also. Where was there ever a son without a father? And where was there ever a father without first being a son? Whenever did a tree or anything spring into existence without a progenitor? And everything comes in this way. Paul says that which is earthly is in the likeness of that which is heavenly. Hence if Jesus had a Father, can we not believe that He had a Father also? I despise the idea of being scared to death at such a doctrine, for the Bible is full of it. I want you to pay particular attention to what I am saying. Jesus said that the Father wrought precisely in the same way as His Father had done before Him. As the Father had done before? He laid down His life, and took it up the same as His Father had done before. (Joseph Smith, Teachings of the Prophet Joseph Smith, p. 373)
"We were begotten by our Father in Heaven; the person of our Father in Heaven was begotten on a previous heavenly world by His Father; and again, He was begotten by a still more ancient Father; and so on, from generation to generation, ... we wonder in our minds, how far back the genealogy extends, and how the first world was formed, and the first father was begotten" (Orson Pratt, The Seer, p.132).