Nicolaitans (nĭk-o-lâ'i-tanz). Heretical persons or teachers, mentioned in Revelation 2:6, Revelation 2:15. Compare 2 Peter 2:12, 2 Peter 2:19, Jude 1:4, Jude 1:1-8, Jude 1:1-12. Some suppose them to have been followers of Nicolas the deacon, but there is no good evidence that he ever became a heretic.