Alpha Nu Sigma () is an American nuclear engineering honor society affiliated with the American Nuclear Society. It has chartered more than 25 chapters at universities in the United States.
Alpha Nu Sigma National Honor Society was established by the American Nuclear Society on June 5, 1979. it was established to "recognize high scholarship, integrity, and potential achievement among outstanding degree-seeking nuclear engineering students at institutions of higher learning". Alpha Nu Sigma quickly grew in size, obtaining seventeen chapters and 320 members by its third anniversary in June 1982.
By the end of 1985, Alpha Nu Sigma had established 23 chapters with 920 members. The Chernobyl disaster occurred in 1986, and the growth of the society has struggled since that event. As of 2024, it has chartered more than 25 chapters and has initiated more than 4,300 total members.
The motto of Alpha Nu Sigma is ÃÂûúî ýõÿóÃÂóÿýõý ôïñ ãÿÃÂïñ, meaning "Energy Newly Born Through Wisdom". The symbol and badge of Alpha Nu Sigma contains "three ellipses representing electron orbits surrounding a nucleus of protons and neutrons" with the Greek letters of the society superimposed. Its honor cord color is white.
Membership selection criteria for Alpha Nu Sigma are outlined in the national honor society's constitution. The criteria are summarized as follows:
As of fall 2021, the following table lists the chapters of Alpha Nu Sigma.
As of spring 2020, the following table lists notable honorary members of Alpha Nu Sigma.