| Fred Clinton Jacobs | |
| Office: | Senior Judge of the United States District Court for the District of Arizona |
| Term Start: | May 31, 1936 |
| Term End: | February 21, 1958 |
| Office1: | Judge of the United States District Court for the District of Arizona |
| Term Start1: | March 2, 1923 |
| Term End1: | May 31, 1936 |
| Appointer1: | Warren G. Harding |
| Predecessor1: | Seat established by 42 Stat. 837 |
| Successor1: | David W. Ling |
| Birth Name: | Fred Clinton Jacobs |
| Birth Date: | 13 September 1865 |
| Birth Place: | Winchester, Massachusetts |
| Education: | University of Chicago |
Fred Clinton Jacobs (September 13, 1865 – February 21, 1958) was a United States district judge of the United States District Court for the District of Arizona.
Born in Winchester, Massachusetts, Jacobs attended the University of Chicago. He was in private practice in San Jose, California from 1895 to 1906. He was in private practice in Phoenix, Arizona Territory (State of Arizona from February 14, 1912) from 1906 to 1923.
Jacobs was nominated by President Warren G. Harding on February 28, 1923, to the United States District Court for the District of Arizona, to a new seat created by 42 Stat. 837. He was confirmed by the United States Senate on March 2, 1923, and received his commission the same day. He assumed senior status on May 31, 1936. Jacobs served in that capacity until his death on February 21, 1958.