•
Province of Silesia, 1815–1919 and 1938 to 1941, a province of Prussia within Germany •
Silesian Voivodeship (1920–1939), an autonomous territorial unit of Poland (1920–1939) •
Silesian Parliament, parliament of the
autonomous Silesian Voivodeship (1920–1939) •
Silesian Treasury, treasury of the
autonomous Silesian Voivodeship (1920–1939) •
Silesian-American Corporation •
Silesian Voivodeship, a present-day division of Poland (see also
Lower Silesian Voivodeship) •
Silesian Regional Assembly •
Moravian-Silesian Region, a present-day division of Czech Republic ==Organisations==