Kutno Operational Group, named after the town and major rail junction of Kutno, (central Poland), was an Operational Group of the Polish Army, created in March 1939, a few months before the Invasion of Poland. Its official name was Kutno Reserve Group of Commander-in-Chief (Grupa Odwodow Naczelnego Wodza „Kutno”, GO „Kutno”), and it remained under direct control of Commander-in-chief of the Polish Army, Marshal Edward Smigly-Rydz.
According to Plan West (March 1939), the Kutno Reserve Group, consisting of three infantry divisions, was to be concentrated in the area of Kutno (22nd Mountain Infantry Division), Wloclawek (13th Infantry Division), and Plock (19th Infantry Division). As Colonel Jozef Jaklicz of Polish Army headquarters specified, the group was tasked with the following:
In accordance with Mobilization Plan W, the 13th and 19th Divisions were marked with red (alarm mobilization), and 22nd Division was planned to join these units in first phase of general mobilization. In the summer 1939, Polish Army headquarters made some changes to Plan West. 13th and 19th Divisions were transferred to Prusy Army, and 22nd Division to Lodz Army. After these changes, Kutno Reserve Group of Commander-in-Chief consisted of 5th Infantry Division (from Army Pomorze) and 24th Infantry Division, from Army Lodz. As a result, the group was reduced from three to two infantry divisions