Osip (Russian О́сип) is a Russian male given name, a variant of the name Joseph. Notable people with the name include:

• Osip Abdulov (1900–1953), Soviet actor
• Osip Aptekman, Russian revolutionary
• Ossip Bernstein (1882–1962), Russian-French chess player
• Osip Bilchansky (1858–1879), Russian terrorist hanged for using a gun to resist arrest
• Osip Bodyansky (1808–1877), Russian Imperial Slavist of Ukrainian Cossack descent
• Osip Braz (1873–1936), Russian-Jewish realist painter
• Osip Brik, Russian writer and literary critic, a futurist
• Osip Dymov (writer), pseudonym for Yosif (Osip) Isidorovich Perelman (1878-1959), Russian writer
• Osip Gelfond (1868–1942), Russian physician and Marxist philosopher
• Osip Komissarov, hatter's apprentice famous for thwarting the assassination of Alexander II of Russia
• Osip Kozodavlev (1754–1819), Russian statesman, politician and Minister of the Interior
• Osip Mikhailovich Lerner (1847–1907), also known as Y. Y. (Yosef Yehuda) Lerner, a 19th-century Russian Jewish intellectual, writer and critic
• Osip Mandelstam, Russian poet
• Osip Minor (1861–1932), Russian revolutionary and member of the Socialist-Revolutionary Party
• Osip Notovich, Russian author, journalist and publisher
• Osip Petrov (1806–1878), Russian operatic bass-baritone
• Osip Piatnitsky (1882–1938), Russian revolutionary
• Osip Senkovsky, Polish-Russian journalist
• Osip Sorokhtei (1890–1941), Ukrainian painter, graphic artist, caricaturist and art teacher
• Osip Startsev, Russian architect
• Osip Ivanovich Somov (1815–1876), Russian mathematician
• Osip Yermansky (1867–1941), Russian economist

See also

• oSIP, a free software library for VoIP applications implementing lower layers of Session Initiation Protocol (SIP)
• Osip Dymov, central fictional character in the classic Russian story "The Grasshopper" (1892) by Anton Chekhov
• Osipov / Osipova (feminine) / Ossipoff