Ernst Hjalmar Waloddi Weibull (18 June 1887 – 12 October 1979) was a Swedish civil engineer, materials scientist, and applied mathematician.

In 1914, while on expeditions to the Mediterranean, the Caribbean and the Pacific Ocean on the research ship Albatross, Weibull wrote his first paper on the propagation of explosive waves.

[4][1] In 1941 he received a personal research professorship in Engineering Physics at the Royal Institute of Technology in Stockholm from the arms producer Bofors.

In 1951 he presented his paper on the Weibull distribution to the American Society of Mechanical Engineers (ASME), using seven case studies.

The Great Gold Medal from the Royal Swedish Academy of Engineering Sciences was personally presented to him by King Carl XVI Gustaf of Sweden in 1978.