Herta Regina Leng (24 February 1903 – 17 July 1997) was an Austrian-American physicist and educator.
Leng was born on 24 February 1903 in Vienna, Austria. She was the daughter of Arthur Leng and Paula Leng, and sister of Leopold Ignaz Leng. Leng fled Austria in 1939 and eventually emigrated to the United States in 1940. She died on 17 July 1997 in Troy, New York.