William McIntyre (6 March 1806 – 12 July 1870) was a Scottish-Australian Presbyterian minister and educator.
William McIntyre was the 5th son and 7th child of Duncan McIntyre and Catherine Kennedy, who were sheep farmers in the parish of Kilmonivaig, Scotland near Spean Bridge. He was proficient in Latin and Greek when he commenced at the University of Glasgow in 1823. He graduated MA in 1829, completed Divinity in 1832, and was licensed by the Presbytery of Dunoon. He taught in a Glasgow school conducted by his older brother Allan and was recruited for Australia by Dr John Dunmore Lang, who heard him preach in Greenock in 1837. He was ordained for Australia with his friend James Forbes on 29 June 1837 by the Church of Scotland Presbytery of Glasgow. He was appointed Chaplain to some 260 immigrants on the Midlothian, which left Portree, Skye on 7 August 1837 and arrived in Sydney 12 December 1837.
McIntyre was the first Gaelic-speaking minister in Australia and the immigrants who came out on the Midlothian mainly spoke that language. Lang falsely represented to Governor Gipps that Lord Glenelg had given public assurances that they would be allowed to settle as a group, which was contrary to the usual policy. Most became occupiers of small but productive farms on Andrew Lang's estate on the Paterson River. Particularly from 1857 they began to move north as new lands were opened and formed the nucleus of most of the congregations that adhered to the Presbyterian Church of Eastern Australia minority which remained outside the general Presbyterian union of 1864/65.