| Frederick Alexander MacDougall | |
| Birth Date: | 2 November 1818 |
| Death Place: | Los Angeles, California |
| Order: | 14th |
| Office: | Mayor of Los Angeles |
| Term Start: | December 8, 1876 |
| Term End: | November 16, 1878 |
| Predecessor: | Prudent Beaudry |
| Successor: | Bernard Cohn |
Frederick Alexander MacDougall (November 2, 1818 – November 16, 1878)[1] was the 14th Mayor of Los Angeles, from 1876 to 1878. He was a physician and the first Los Angeles Chief of Police. He died in 1878 in office and Bernard Cohn was appointed to be mayor for only 2 weeks.[2]