Yvonne Madelaine Brill (née Claeys; December 30, 1924 – March 27, 2013) was a Canadian American rocket and jet propulsion engineer.

[1] During her career she was involved in a broad range of national space programs in the United States, including NASA and the International Maritime Satellite Organization.

[5] She had originally applied to their engineering program at 18, but was denied by the school, as they claimed that their mandatory summer camp did not have the necessary facilities to host female students.

[1] Her denial to Manitoba’s school of engineering forever inspired her to encourage women in the sciences, and in her, forged an unwavering confidence against gender-based discrimination.

[10] Large aeronautics and aviation companies including, but not limited to, RCA, GE, Lockheed Martin, and Orbital Sciences have used the EHT in their communication satellites.

[1] In light of her brilliance in the field of rocket science and subsequent contributions, Brill was the recipient of many prestigious awards and founded scholarships and a lectureship.

An obituary of Brill published in the March 30, 2013, issue of the New York Times drew much news coverage not necessarily because of her remarkable accomplishments in the field of rocket science, but due to apparent sexism.

[6] The obituary was heavily criticized for leading with and overemphasizing Brill's gender and family life, rather than her remarkable scientific and career achievements[6] and was cited as an example of an article that failed the Finkbeiner test.