Serg may refer to:

Serg Bell (born 1971), Singaporean businessman entrepreneur, investor and speaker Serg., taxonomic author abbreviation of Lidia Palladievna Sergievskaya (1897–1970), Soviet botanist, professor, and herbarium curator Serg., abbreviation for Sergeant, a police and military rank

See also Van Serg, a lunar crater Serge (disambiguation) Serj, a given name