Herman S Hallo
- Category : 1879-births
- Type : GE
- Profile : 2/4 - Hermit / Opportunist
- Definition : Triple Split
- Incarnation Cross : RAX Service 3
Dutch engineer, professor at the Technical University of Delft in the department of electrical engineering, and rector of the University in the academic year 1930-1931. In 1924, he published a study of electrical traction, which remained a standard work for students for many years. He died in Bennebroek on 26 August 1966, aged 86.