Nikola Tesla, Serbian-American born in modern-day Croatia's part of the Austrian Empire; inventor, mechanical engineer, electrical engineer; died in 1943
Lise Meitner, Austrian-Swedish, helped discover nuclear fission; d. 1968
Peter M. Gruber, was known for work about "geometry of numbers and to convex and discrete geometry"; Geometric number theory, and convex and discrete geometry; d. 2017