Gaston du Bousquet (1839–1910) was a French engineer who was Chief of Motive Power (ingénieur en chef traction) of the Chemin de Fer du Nord, designer of locomotives and professor at École centrale de Lille.
[1] Gaston du Bousquet taught mechanical engineering at the Institut industriel du Nord de la France (École Centrale de Lille) from 1872.
He was appointed chief engineer to the Chemins de Fer du Nord in 1890.
He collaborated successfully with Alfred de Glehn and Edward Beugniot, both working for the Société Alsacienne de Constructions Mécaniques (SACM).
He introduced compound (double expansion) steam locomotives to the industrial network with the help of Alfred de Glehn, engineer to SACM.