On Mormon theology, plural marriage is promoted (at least in eras where it is legal, e.g. 1852 to 1890); Mormonism's founders and early authorities most all engaged in polygamy. At least some believed Jesus had multiple wives. Despite this, Jesus's being polygamous is not accepted as official church doctrine.
• Joseph Fielding Smith (Mormonism's 10th president-prophet, in response to the question: “In the Temple ceremony we are told that only through Temple marriage can we receive the highest degree of exaltation and dwell in the presence of our Heavenly Father and Jesus Christ. Christ came here to set us the example and, therefore, we believe that he must have been married. Are we right?”) “Yes! But do not preach it! The Lord advised us not to cast pearls before swine!”[Letter to J. Ricks Smith, dated March 17, 1963](Scan provided by mrm.org here]1
• Orson Hyde (Mormon Apostle): “She turned herself, and saith unto him, Rabboni; which is to say, Master.' Is there not here manifested the affections of a wife. These words speak the kindred ties and sympathies that are common to that relation of husband and wife … Now there was actually a marriage; and if Jesus was not the bridegroom on that occasion, please tell who was. If any man can show this, and prove that it was not the Savior of the world, then I will acknowledge I am in error. We say it was Jesus Christ who was married, to be brought into the relation whereby he could see his seed, before he was crucified”[Journal of Discourses 2:81-82]
• Orson Hyde (Mormon Apostle): “…I said, in my lecture on Marriage, at our last Conference, that Jesus Christ was married at Cana of Galilee, that Mary, Martha, and others were his wives, and that he begat children”[Journal of Discourses 2:210]
• Orson Pratt (Mormon Apostle): “…it would be natural for a husband in the resurrection to appear first to his own dear wives, and afterwards show himself to his other friends. If all the acts of Jesus were written, we no doubt should learn that these beloved women were His wives”[The Seer, 159.] “We have now clearly shown that God, the Father had a plurality of wives, one or more being in eternity, by whom He begat our spirits as well as the spirit of Jesus His First Born… We have also proved most clearly that the Son followed the example of his Father, and became the great Bridegroom to whom kings' daughters and many honorable Wives to be married.”[The Seer, 172.]
Woodruff himself had seven (possibly eight) wives:
• Wilford Woodruff (Mormonism's 4th president-prophet): “Evening Meeting. Prayer By E Stephenson. Joseph F Smith spoke One hour & 25 M. He spoke upon the Marriage in Cana at Galilee. He thought Jesus was the Bridgegroom and Mary & Martha the brides. He also refered to Luke 10 ch. 38 to 42 verse, Also John 11 ch. 2 & 5 vers John 12 Ch 3d vers, John 20 8 to 18. Joseph Smith spoke upon these passages to show that Mary & Martha manifested much Closer relationship than Merely A Believer which looks Consistet. He did not think that Jesus who decended throug Poligamous families from Abraham down & who fulfilled all the Law even baptism by immersion would have lived and died without being married.”[Wilford Woodruff's Journal 8:187, July 22, 1883 (misspellings in original)]
Phoebe Whittemore Carter on April 13, 1837, Mary Ann Jackson on Aug 2, 1846 (later divorced), Mary Meek Giles Webster on March 28, 1852, Emma Smith on March 13, 1853, Sarah Brown on March 13, 1853, Sarah Delight Stocking on July 31, 1857, Eudora Young Dunford on March 10, 1877 (later divorced).