Eugene P. Northrop (1908–1969) was an American research mathematician and a math popularizer.
Northrop received his PhD from Yale University in 1934 with thesis advisor Einar Hille. Northrop held the William Rainey Harper Chair of Mathematics at the University of Chicago,[1] and frequently served in administrative roles and on technical commissions.[2] He is most remembered for his 1944 book Riddles in Mathematics,[3] which was well-received by the mathematical community[4] and remains in print as a Dover book (first published in 2014).[5]