von Firmian may refer to:
- Karl Joseph von Firmian (1716–1782), Austrian noble, Plenipotentiary of Lombardy to the Austrio-Hungarian Empire
- Leopold Anton von Firmian (1679–1744), Bishop of Lavant, Bishop of Seckau and Prince-Archbishop of Salzburg
- Leopold Ernst von Firmian (1708–1783), Austrian bishop and cardinal
- Leopold Maximilian von Firmian (1766–1831), Bishop of Lavant, Archbishop of Salzburg
See also
edit- Nick de Firmian (born 1957), American chess player and Grandmaster
- Firman
- Firmiana
- Firmin