Fra' Galeas von Thun und Hohenstein was the Prince and Grand Master of the Sovereign Military Order of Malta from 1905 to 1931. His first name was also known as Galeazzo.
- Occupation
- politician, jurist, Grand Master
- Position held
- Prince and Grand Master of the Sovereign Military Order of Malta, Member of the House of Lords (Austria)
- Citizenship
- Cisleithania, Austria
- Born
- September 24, 1850
- Died
- March 26, 1931