10th Infantry Regiment (Polish language: 10 Pulk Piechoty, 10 pp) was an infantry regiment of the Polish Army. It existed from 1918 until 1939. Garrisoned in Łowicz, the unit belonged to the 26th Infantry Division from Skierniewice.
The history of the regiment dates back to late October 1918, when ethnic Poles, serving in the 31st Rifles Regiment of the Austro-Hungarian Army, took control over the city of Cieszyn. On November 5, 1918, the regiment pledged allegiance to the Regency Council (Poland), and on December 6, it was renamed into the Infantry Regiment of the Land of Cieszyn. On February 8, 1919, the name was changed again, into the 10th Infantry Regiment.
After the Polish-Soviet War, the regiment was moved to central Polish town of Łowicz, to Jozef Pilsudski Barracks, located on Podrzeczna Street. As part of the 19th Infantry Division, it fought in the Invasion of Poland, and was destroyed in the Battle of Bzura.
The flag of the regiment, funded by Lowicz Association of Landowners, was handed to it on January 23, 1921 in Zambrow. In July 1925, a new flag was funded, and handed to the regiment during a ceremony attended by President Stanislaw Wojciechowski.
The badge, approved in 1928, was in the shape of the cross, with the number 10 in the middle, and historic dates 1775 1806 1830 1918.