Helen Dorothy Zepp (June 28, 1903 – March 18, 1994) was an American medical researcher based in Baltimore and later in New York City.

[2] Zepp worked at the Philadelphia Hospital for Contagious Diseases after college.

[4] In 1949, she moved with her collaborator Horace L. Hodes[5] to become assistant to the director of pediatrics at Mount Sinai Hospital in New York City.

[7] "It seems to me that my life is one white mouse after another," she reported to the Goucher alumnae magazine in 1954.

[6] Zepp was co-author on articles that appeared in JAMA,[3] Science,[8] Nature,[9] The Journal of Pediatrics,[10] and Experimental Biology and Medicine.