George Thom (1842–1916) was a Scottish mathematician and pedagogue who was principal at Dollar Academy from 1878 to 1902.

In 1867 he became Principal of Doveton College in Madras, India and he remained there till 1876, when he returned to Scotland as Vice-Principal of Chanonry School Aberdeen.

He held this post for 24 years, till his retirement in 1902.

He was a founder member of the Edinburgh Mathematical Society in 1883 and became its fifth President in 1886.

In 1887 the University of St Andrews conferred on him the degree of Doctor of Laws[1] He wrote a number of standard class-books on mathematics, botany, physiology, and other subjects.