Marshall P. Tulin (14 March 1926 - 31 August 2019) was an American engineer working in hydrodynamics.
[1] He was the Director of the Ocean Engineering Laboratory, University of California, Santa Barbara, where he also held a University of California President Chair Professorship from 1982 to 1987.
[2] His pioneering work in the 1950s is credited with successful developments in the theory of supercavitation for naval engineering.
After graduating from MIT in 1946, he first worked on high-speed wind tunnel testing of the X-1 aircraft before moving to work for the Navy at the David Taylor Model Basin.
He founded a consulting company, Hydronautics Inc, with Phillip Eisenberg in 1959.