Paul Seidel (born 30 December 1970) is a Swiss-Italian mathematician specializing in homological mirror symmetry.

Seidel attended Heidelberg University, where he received his Diplom under supervision of Albrecht Dold in 1994.

He then pursued his Ph.D. studies at the University of Oxford under supervision of Simon Donaldson (Thesis: Floer Homology and the Symplectic Isotopy Problem) in 1998.

[2] In 2010, he was awarded the Oswald Veblen Prize in Geometry "for his fundamental contributions to symplectic geometry and, in particular, for his development of advanced algebraic methods for computation of symplectic invariants.

[5] Seidel is married to Ju-Lee Kim, who is also a professor of mathematics at MIT.