Thomas Zaslavsky (born 1945) is an American mathematician specializing in combinatorics.

Zaslavsky's mother Claudia Zaslavsky was a high school mathematics teacher and an ethnomathematician in New York; his father Sam Zaslavsky (from Manhattan) was an electrical engineer. Thomas Zaslavsky graduated from the City College of New York. At M.I.T. he studied hyperplane arrangements with Curtis Greene and received a Ph.D. in 1974. In 1975 the American Mathematical Society published his doctoral thesis.

Zaslavsky has been a professor of mathematics at the Binghamton University, New York since 1985. He has published papers on matroid theory and hyperplane arrangements. He has also written on coding theory, lattice point counting, and Sperner theory. Zaslavsky has made available a bibliography on signed graphs and their applications.

Select publications

• Zaslavsky, Thomas (2015). "Bibliography, glossary, and problem list for signed, gained, and biased graphs". Binghamton University.
• Zaslavsky, Thomas (2003). "Faces of a hyperplane arrangement enumerated by ideal dimension, with application to plane, plaids, and Shi". Geometriae Dedicata. 98: 63–80. doi:10.1023/A:1024029318990.
• Seymour, P. D.; Zaslavsky, Thomas (June 1984). "Averaging sets: a generalization of mean values and spherical designs". Advances in Mathematics. 52 (3): 213–240. doi:10.1016/0001-8708(84)90022-7.
• Greene, Curtis; Zaslavsky, Thomas (1983). "On the interpretation of Whitney numbers through arrangements of hyperplanes, zonotopes, non-Radon partitions, and orientations of graphs". Transactions of the American Mathematical Society. 280 (1): 97–126. doi:10.2307/1999604. JSTOR 1999604. MR 0712251.
• Zaslavsky, Thomas (1975). Facing up to Arrangements: Face-count Formulas for Partitions of Space by Hyperplanes. Memoirs of the American Mathematical Society. Vol. 1. doi:10.1090/memo/0154.