Osman Bey
Osman Bey may refer to:

Osman I, Ottoman Bey ( 1254–1323)
Tanburi Büyük Osman Bey (1816–1885), Ottoman composer
Osman Hamdi Bey (1842–1910), Ottoman statesman
Qara Osman ( 1378–1435), Oghuz Turkic leader
Topal Osman (1883–1923), Turkish militia leader
Osman Bey ( 1737), Ottoman Bosnian commander
Osman Adil Bey, mayor of Thessaloniki (1908)
Osman Bey, name taken by English writer and army officer Frederick van Millingen while in Ottoman service
Osman Bey (fictional character), the main protagonist of Turkish series Kuruluş: Osman