Yoichiro Nambu (南部 陽一郎, Nanbu Yōichirō, 18 January 1921 – 5 July 2015) was a Japanese-American physicist and professor at the University of Chicago.

[1] The other half was split equally between Makoto Kobayashi and Toshihide Maskawa "for the discovery of the origin of the broken symmetry which predicts the existence of at least three families of quarks in nature.

[1] In 1949, he was appointed to associate professor at Osaka City University[2] and promoted to professorship the next year at the age of 29.

[15] The Nambu Hall was opened on the second floor of Osaka University Graduate School of Science, J Building in 2017.

[18] The Osaka Metropolitan University Nambu Yoichiro Institute of Theoretical and Experimental Physics (NITEP) was founded on November 1, 2018.