Maurice Lugeon FRS(For)[1] HFRSE FGS (10 July 1870 – 23 October 1953) was a Swiss geologist, and the pioneer of nappe tectonics.

Named for Maurice Lugeon, the lugeon is a measure of transmissivity in rocks, determined by pressurized injection of water through a bore hole driven through the rock.

From the age of 15 he showed a strong interest in geology.

[2] He spent most of his academic life at the University of Lausanne becoming Professor of Geology in 1906.

[3] He became an expert on dam locations and was consulted widely on this.