Eitel Frederick von Hohenzollern-Sigmaringen should not be confused with Friedrich von Hohenzollern.
| Type: | Cardinal |
| Church: | Roman Catholic |
| Created Cardinal By: | Paul V |
| Cardinal: | 11 January 1621 |
| Prince-Bishop of Osnabrück | |
| Birth Date: | 25 September 1582 |
| Predecessor: | Philip Sigismund |
| Successor: | Francis of Wartenberg |
| Appointed: | 19 April 1623 |
| Consecration: | 29 October 1623 |
| Consecrated By: | Attilio Amalteo |
| Birth Place: | Sigmaringen |
| Death Place: | Iburg Castle, Bad Iburg |
| Honorific Prefix: | His Eminence The Most Reverend |
Eitel Friedrich von Hohenzollern-Sigmaringen (25 September 1582 – 19 September 1625) was a Roman Catholic Cardinal-Priest and Prince-Bishop of Osnabrück. He was a son of Charles II, Count of Hohenzollern-Sigmaringen and thus a member of the noble and ancient Hohenzollern-Sigmaringen family.
On the 15 December 1620 Pope Gregory XV created him Cardinal in pectore, he was publicly proclaimed Cardinal-Priest of S. Lorenzo in Panisperna on 11 Jan 1621. He was appointed Prince-Bishop of Osnabrück on 28 April 1623.[1] On the 29 October 1623 he chose to become a priest and was ordained.
He was never styled Eminence as this was only done after his death in 1630.