XVIII Corps (Ottoman Empire)
| XVIII Corps On Sekizinci Kolordu  | |
|---|---|
| Active | 1912-1913 June 7, 1915 (as the Right Wing Group of the Third Army)– September 20, 1915 (as the XVIII Corps)-  | 
| Country | Ottoman Empire | 
| Type | Corps | 
| Patron | Sultans of the Ottoman Empire | 
| Engagements | Mesopotamian campaign (World War I) | 
| Commanders | |
| Notable commanders  | Miralay Mehmet Ali Bey Miralay Halil Bey Miralay Kâzım Karabekir Bey (April 27, 1916-April 8, 1917) Miralay Galatalı Şevket Bey  | 
The XVIII Corps of the Ottoman Empire (Turkish: 18 nci Kolordu or On Sekizinci Kolordu) was one of the corps of the Ottoman Army. It was formed during World War I.