Serg

Serg may refer to:


 * Van Serg (crater), a lunar crater named for a pseudonym
 * 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
 * Serg Bell (born 1971), Singaporean businessman entrepreneur, investor and speaker