Paul Mansion (3 June 1844 – 16 April 1919) was a Belgian mathematician, editor of the journal Mathesis.

[1] In 1862 he entered in the École Normale des Sciences, attached to the University of Ghent, where he graduated in 1865.

From this time till 1867 he taught mathematics in the artillery academy in Ghent, while he was working in his doctoral thesis.

[2] In 1867, after the death of his professor Mathias Schaar, he was appointed to the chair of calculus at the university of Ghent.

[5] The works of Mansion, deal mainly with non-Euclidean geometry,[6] history of mathematics,[7] and differential equations.