Dorothy Lewis Bernstein (April 11, 1914 – February 5, 1988) was an American mathematician known for her work in applied mathematics, statistics, computer programming, and her research on the Laplace transform.

She did her master's thesis research on finding complex roots of polynomials by an extension of Newton's method.

She earned her Ph.D. in mathematics from Brown in 1939, while simultaneously holding a teaching position at Mount Holyoke College.

[4] Due in great part to Bernstein's ability to get grants from the National Science Foundation, Goucher College was the first women's university to use computers in mathematics instruction, beginning in 1961.

She developed an internship program for Goucher mathematics students to obtain meaningful employment experience.