The X Corps of the Ottoman Empire (Turkish: 10 ncu Kolordu or Onuncu Kolordu) was one of the corps of the Ottoman Army. It was formed in the early 20th century during Ottoman military reforms.
With further reorganizations of the Ottoman Army, to include the creation of corps level headquarters, by 1911 the X Corps was headquartered in Erzincan. The Corps before the First Balkan War in 1911 was structured as such:
X Corps, Erzincan30th Infantry Division, Erzincan88th Infantry Regiment, Erzincan89th Infantry Regiment, Erzincan90th Infantry Regiment, Erzincan30th Rifle Battalion, Yemen30th Field Artillery Regiment, Erzincan30th Division Band, Erzincan31st Infantry Division, Erzincan91st Infantry Regiment, Siirt92nd Infantry Regiment, Bitlis93rd Infantry Regiment, Sivas31st Rifle Battalion, Erzincan31st Division Band, Erzincan32nd Infantry Division, Ma'murat-ül Aziz94th Infantry Regiment, Diyâr-ı Bekir95th Infantry Regiment, Ma'murat-ül Aziz96th Infantry Regiment, Dersim32nd Rifle Battalion, Erzıncan32nd Field Artillery Regiment, Erzincan32nd Division Band, Ma'murat-ül AzizUnits of IX Corps19th Cavalry Regiment, Erzincan20th Cavalry Regiment, Diyâr-ı Bekir9th Engineer Battalion, Erzincan9th Transport Battalion, ErzincanMedical Detachment, ErzincanOn January 7, 1913, the Provisional X Corps was structured as follows:
X Corps31st Division32nd DivisionMamuretülaziz Redif Division30th Field Artillery RegimentIndependent Schneider Artillery BattalionMountain Howitzer Battalion5th Cavalry RegimentTribal Cavalry DivisionTrains and Ammunition ColumnsOn March 25, 1913, the corps was structured as follows:
X Corps (Thrace, under the command of the Chataldja Army)4th Division, 31st DivisionAmasya Redif DivisionIndependent Cavalry BrigadeX Corps (Gallipoli Army)4th Division, 31st Division, Aziz Infantry DivisionIn November 1914, Late April 1915, Late Summer 1915, January 1916, August 1916, the corps was structured as follows:
X Corps (Caucasus)30th Division, 31st Division, 32nd Division