Joseph Jacob Goldmark (15 August 1819 – 18 April 1881) was a Hungarian American physician and chemist, credited with the discovery of red phosphorus.

[1] Born in Németkeresztúr, Austrian Empire to a Jewish family of 18 children, Goldmark entered the University of Vienna at age 16, studying medicine.

Both are credited with the discovery of red phosphorus, which Goldmark presented to the Convention of Hungarian Physicians and Naturalists.

A revolutionist in his youth, Goldmark took part as a leader in the Revolution of 1848, along with Adolf Fischhof, fighting for Jewish emancipation.

[3] When the revolution was stamped down, Goldmark was sentenced to death but managed to escape to the United States and settle in New York City.