Bertram Hopkinson CMG FRS MIEE MICE (11 January 1874 – 26 August 1918) was a British patent lawyer and Professor of Mechanism and Applied Mechanics at Cambridge University. In this position he researched flames, explosions and metallurgy and became a pioneer designer of the internal combustion engine. He is buried in the Parish of the Ascension Burial Ground in Cambridge, with his wife Mariana, née Siemens; they had seven daughters.