Osterc

Osterc is a Slovenian surname that may refer to
 * Aljaž Osterc (born 1999), Slovenian ski jumper
 * Lidija Osterc (1928–2006), Slovenian painter and illustrator
 * Milan Osterc (born 1975), Slovenian football striker
 * Slavko Osterc (1895–1941), Slovenian composer
 * Slavko Osterc Ensemble, a Slovenian chamber orchestra formed in 1962