Oganessian

Oganessian is a surname of Armenian origin. It is a patronymic formed from the given name Oganes, with the Armenian suffix -yan (-ian) indicating "son of" or "family of." The name has several transliterations, including Oganessian, Oganesyan, and Oganesian, reflecting differences in language and spelling.

Notable bearers of the name include Yuri Oganessian, a Soviet-Armenian nuclear physicist who has played a leading role in the search for and characterization of superheavy elements at the Joint Institute for Nuclear Research (Dubna). He headed the team that synthesized element 118, an achievement that led to the element being named oganesson in his honor by IUPAC in 2006.

The surname is found among Armenians and people of Armenian descent around the world. As with many Armenian surnames, its spelling varies with transliteration, and related forms such as Oganesyan or Oganesian may appear in different linguistic contexts. In scientific and historical references, the name Oganessian is closely associated with the field of nuclear physics and the discovery of new elements.