Ion I. Agârbiceanu (6 January 1907 – 9 March 1971) was a Romanian physicist born in Bucium, Alba County in Transylvania.

He was the son of the writer and Greek-Catholic priest Ion Agârbiceanu and his wife Maria.

[1] After completing his secondary education at the George Barițiu High School in Cluj,[2] Agârbiceanu studied from 1925 to 1929 at the Electrotechnic Institute of Bucharest.

This laser was invented during Agârbiceanu's long tenure as head of Physics Lab 1 at the Polytechnic Institute of Bucharest, which lasted from 1955 to 1971.

[5] Agârbiceanu died in Cluj on 9 March 1971, a scant few months after he stopped working for the Polytechnic Institute of Bucharest.