Osman Gazi refers to Osman I, the first Sultan of the Ottoman Empire.
Osman Gazi or Osmangazi may also refer to:
Osmangazi, a municipality and district of Bursa Province, Turkey Osmangazi Tunnel, a road tunnel in western Turkey , an amphibious warfare ship of the Turkish Navy Osmangazi Bridge, a suspension bridge in southeast of Istanbul, Turkey Kuruluş: Osman, Turkish drama-series, also called Osman Ghazi
See also Gazi Osman Pasha