Is Freemasonry a Pagan Organization? 

Well, as POTUS Clinton said about sex, here it seems to depend upon your definition of what Pagan means.  If you consider a pagan to be anyone who does not push and encourage your religion then you probably consider Freemasonry to be Pagan.

No, since Freemasonry is not a religion at all and does not favor one religion over any other religion.

Freemasonry is no more Pagan that it is Christian, Jewish, Hindu, Islam or any other religion that you can name.  Freemasonry is not a Religion but it teaches many things that various religions also teach.

Freemasonry teaches a man to be a better man in society.  Freemasonry, unlike many religions, does not kill others over their choice of a name for the Great Architect of The Universe.