| Mehmet Hayri Tarhan 1317-P. 4[1] | |
| Birth Place: | Tirnovadjik (Malko Tarnovo), Ottoman Empire |
| Death Place: | Ankara, Turkey |
| Placeofburial: | Ankara Şehitliği State Cemetery |
| Allegiance: |  Turkey |
| Serviceyears: | Ottoman: 1902–1920 Turkey: 21 June 1920–10 November 1934 |
| Rank: | Mirliva |
| Commands: | Chief of Staff of the XV Corps, Chief of Staff of the XVI Corps, 2nd division of the General headquarters, Chief of Staff of the II Corps, Chief of Staff of the XV Corps, 42nd Division, 12th Division, 26th Division, Chief of Staff of the Seventh Army, Vice General Inspector of the Military Schools Chief of Staff of Adana Front, Maraş Division, 9th Division, Inspector of Yahşihan Rear Area, Gaziantep Area Command, General Inspector of the Military Schools, Military attaché to Bucharest, Inspector of Logistics |
| Battles: | Balkan Wars First World War War of Independence |
Mehmet Hayri Tarhan (1884; Tirnovadjik (Malko Tarnovo) – 11 December 1934; Ankara) was a military officer of the Ottoman Army and a general of the Turkish Army.