Robert Spearman (1703–1761) was an English theologian, known as a Hutchinsonian.
He was the eldest son of Robert Spearman, attorney of Durham, by his wife Hannah, only daughter of William Webster, merchant, of Stockton-on-Tees. He studied at Corpus Christi College, Oxford, but left without taking a degree. He then lived at Old Acres, Sedgefield.
A pupil of John Hutchinson, Spearman survived him, edited his works, and wrote his life. He was the dedicatee of Two Dissertations concerning the Etymology and Scripture-Meaning of the Hebrew words Elohim and Berith (1751) by Thomas Sharp, with whom he was on good terms.
Spearman's own writings were:
- An Enquiry after Philosophy and Theology, tending to show when and whence mankind came at the knowledge of these two important points, Edinburgh, 1755; 2nd ed. Dublin, 1757 (a polemic against Newtonian physics);
- Letters to a Friend concerning the Septuagint Translation and the Heathen Mythology, Edinburgh, 1759 (an attempt to derive all mythologies from a primeval revelation).