I. Corps
I. (1.) Corps or I. Army Corps stands for the following major military units:
- I. Corps (Bundeswehr) (1956-1995); later 1st German-Dutch Corps
- I. Army Corps (Prussia)
- I. Royal Bavarian Army Corps
- 1st Corps (Austria-Hungary)
- I. Army Corps (Reichswehr)
- I. Army Corps (Wehrmacht)
such as:
- I. Australian Corps
- I. British Corps
- I. French Corps
- I Corps (United States)
- I. Army Corps (Syria)
- Field Army Corps 1 of Switzerland
I. Panzer Corps stands for:
I. Corps stands for the following music corps:
