Nathalie Zylberlast-Zand (1883 – 1942) was a Polish Jewish neurologist who died in a Nazi prison during World War II.

[3] In 1899, she graduated from the Second Women's Junior High School in Warsaw in 1899 and went on to earn her medical diploma from the University of Geneva, under the supervision of Edouard Martin, based on her dissertation Un cas de leucémie myéloïde chez un enfant de neuf mois (A case of myeloid leukemia in a nine month old child).

On the night of 23 to 24 September 1942, she was deported to the Pawiak prison in Warsaw, where, it is believed, she was executed and is considered one of many martyred Jewish physicians from Poland.

[3][5] For many years Zand worked with Flatau at the Jewish Hospital in Warsaw and as an assistant in his neurology laboratory.

[3] During her career, Zand researched coma encephalitis, pyramidal pathways, lower olives, choroid plexus of the ventricles and post-cerebral rigidity, among other topics.