Ethel Amanda Grosscup (July 1891 – May 29, 1949) was an American physical educator and child health consultant, based in New Jersey.

She also competed in swimming, diving, gymnastics, baseball, and hockey events, and was active in dramatics, student government, and music programs.

[6] In 1915, Grosscup was appointed chair of the English department and director of athletics at the International Institute for Girls in Spain, a Protestant school run by American missionary Alice Gordon Gulick.

[11][12] She was assistant director of physical training for the New Jersey Board of Education until she resigned in 1928,[13] and an advisor to the National Tuberculosis Association in the early 1930s.

She spoke at the American Physical Education Association state and regional conferences in Atlantic City in 1926,[19] Louisville in 1931,[20] and in Jacksonville in 1932.