Charlotte Froese Fischer (September 21, 1929 – February 8, 2024) was a Canadian-American applied mathematician, computer scientist and physicist noted for the development and implementation of the Multi-Configurational Hartree–Fock (MCHF) approach to atomic-structure calculations and its application to the description of atomic structure and spectra.

Charlotte Froese was born on September 21, 1929, in the village of Stara Mykolaivka (formerly Pravdivka, and Nikolayevka[6]), in the Donetsk region, in the present-day Ukraine, to parents of Mennonite descent.

Froese Fischer was the author of over 300 research articles on computational atomic theory, many of which have had far-reaching impact in the area of atomic-structure calculations.

[8] One of her largest efforts in the field is the calculation of the complete lower spectra of the beryllium-like to argon-like isoelectronic sequences, amounting to the publication of data covering 400 journal pages and a total of over 150 ions.

[11] Froese Fischer was an research professor of computer science at Vanderbilt University and a Guest Scientist in the Atomic Spectroscopy Group at NIST.