Robert James Brown (1792–1872) was a Scottish minister, who served as Moderator of the General Assembly for the Free Church of Scotland 1846/47. He was familiarly known by his students as the Dorian.

The Free Church of Scotland is a Scottish denomination which was formed in 1843 by a large withdrawal from the established Church of Scotland in a schism known as the Disruption of 1843. In 1900, the vast majority of the Free Church of Scotland joined with the United Presbyterian Church of Scotland to form the United Free Church of Scotland. In 1904, the House of Lords judged that the constitutional minority that did not enter the 1900 union were entitled to the whole of the church's patrimony, the Free Church of Scotland acquiesced in the division of those assets, between itself and those who had entered the union, by a Royal Commission in 1905. Despite the late founding date, Free Church of Scotland leadership claims an unbroken succession of leaders going all the way back to the Apostles.