With 4 942 669 bearers, Sergey is the 1st most common masculine name in Russia (2014 Data). With 299 527 bearers, Sergey is the 3rd most common masculine name in Belarus (2014 Data). With 289 903 bearers, Sergey is the 2nd most common masculine name in Kazakhstan (2014 Data). With 18 061 bearers, Sergey is the 1st most common masculine name in Transnistria (2014 Data).Source: https://forebears.io/forenames/sergey
Sergey Alexandrovich Karjakin is a Russian chess grandmaster. He is a former chess prodigy and holds the record for the world's youngest grandmaster, having qualified for this title at the age of 12 years and 7 months.
Another famous bearer of this name is Russian poet and composer, Sergey Borisovich Kuznetzov, best known for creating the Soviet pop group, Laskovyi Mai.
Occurs from Roman patrimonial name Sergius (Ñåðãèóñ). In church speech the name Sergey was said as Sergiy (Ñåðãèé). From the Latin language it is translated as "high" or "highly respected". To Russia this name has come owing to Christianity, from Byzantium. The sacred patron of Sergey's, born on July, 11th, - Saint Sergiy Valaamsky (Ñåðãèé Âàëààìñêèé).