Peter Steven Ozsváth (born October 20, 1967) is a professor of mathematics at Princeton University.
He created, along with Zoltán Szabó, Heegaard Floer homology, a homology theory for 3-manifolds.
He received his Ph.D.
from Princeton in 1994 under the supervision of John Morgan; his dissertation was entitled On Blowup Formulas For SU(2) Donaldson Polynomials.
In 2008 he was named a Guggenheim Fellow.
In July 2017, he was a plenary lecturer in the Mathematical Congress of the Americas.
He was elected a member of the National Academy of Sciences in 2018.