Frederick Katzer
| Frederick Xavier Katzer | |
|---|---|
| Archbishop of Milwaukee | |
| Church | Catholic Church | 
| Archdiocese | Milwaukee | 
| Appointed | January 30, 1891 | 
| Term ended | July 20, 1903 (his death) | 
| Predecessor | Michael Heiss | 
| Successor | Sebastian Gebhard Messmer | 
| Other post(s) | Bishop of Green Bay (1886–1891) | 
| Orders | |
| Ordination | December 21, 1866 by John Henni | 
| Consecration | September 21, 1886 by Michael Heiss | 
| Personal details | |
| Born | February 7, 1844 | 
| Died | July 20, 1903 (aged 59) Fond du Lac, Wisconsin, U.S. | 
| Signature | |
Frederick Xavier Katzer (February 7, 1844 – July 20, 1903) was an Austrian-born American Catholic prelate who served as Archbishop of Milwaukee from 1891 to 1903. He previously served as Bishop of Green Bay (1886–1891).