| Unit Name: | 1st Corps |
| Dates: | 1 September 1992 – 1995 |
| Country: |  |
| Allegiance: | Army of the Republic of Bosnia and Herzegovina |
| Garrison: | Sarajevo |
| Branch: | Regular Army |
| Type: | Motorized, Mountain and Infantry |
| Role: | Defence of Sarajevo |
| Size: | 34,500 (1992), 40,500 (1995) |
| Colors: | Green and yellow |
| Battles: | Operation Neretva '93 |
| Notable Commanders: | Mustafa Hajrulahović Talijan Vahid Karavelić Nedžad Ajnadžić |
| Identification Symbol Label: | 5th Corps patch |
The 1st Corps was one of seven units of the Army of the Republic of Bosnia and Herzegovina established in 1992, in the early part of the Bosnian War.
The 1st Corps of the Army of the Republic of Bosnia and Herzegovina was solely established to defend Sarajevo and some part of the Sarajevo region. In 1997–1998, the 1st, 3rd and 7th Corps were incorporated into the 1st Corps of the Army of the Federation of Bosnia and Herzegovina.
The First Corps was responsible for the zone of Sarajevo during the war with the Bosnian Serb and Croat forces and its headquarters were established in Sarajevo. The First Corps had the assignment of protecting the Sarajevo, Gorazde zone from the opponents.
From 1992 to 1994: These brigades were later renamed in the 3-number series.
In January 1995 all Corps operational Groups were transformed into divisions and each division contained numerous brigades, further divided into battalions and detachments and specialized units.