Elizabeth Bugie Gregory (October 5, 1920 – April 10, 2001) was an American biochemist who co-discovered Streptomycin, the first antibiotic against Mycobacterium tuberculosis in Selman Waksman laboratory at Rutgers University.

[4] In 1944 Bugie, Waksman and Albert Schatz identified streptomycin in cultures of soil organisms, an antibiotic which was found to be active against Mycobacterium tuberculosis.

[15] In the discovery of Streptomycin three people played a large role, namely Waksman, Shatz, and Bugie, later known as Elizabeth Gregory.

[2] When the patent was created, neither Waksman nor Shatz included Bugie, claiming that it would not matter because someday she would be married and have kids.

[18] Bugie was, however, later quoted by her daughters as having said that if the women's liberation movement had been present, she would have received credit towards the patent on streptomycin.

[1] Shatz explained "the fact that Waksman asked her to do the work was a testimonial to her talents and competence,"[2]showing how much of an impact she actually made, and how little she was compensated for it.