| Frank C. Jordan | |
| Order: | 20th Secretary of State of California |
| Term Start: | January 3, 1911 |
| Term End: | January 18, 1940 |
| Governor: | Hiram Johnson William Stephens Friend Richardson C. C. Young James Rolph Frank Merriam Culbert Olson |
| Predecessor: | Charles F. Curry |
| Successor: | Paul Peek |
| Office1: | Clerk of the Supreme Court of California |
| Term Start1: | 1903 |
| Term End1: | 1907 |
| Office2: | Alameda County Clerk |
| Term Start2: | 1895 |
| Term End2: | 1903 |
| Birth Name: | Frank Chester Jordan |
| Birth Date: | 3 April 1860 |
| Birth Place: | Haycrafts Ferry, Shasta County, California, U.S. |
| Death Place: | Sacramento, California, U.S. |
| Party: | Republican |
| Relatives: | William H. Jordan (brother) Henry Vrooman (brother-in-law) |
| Occupation: | Clerk |
| Known For: | Longest-serving state official in the country at time of death |
Frank Chester Jordan (April 3, 1860 – January 18, 1940) was the 20th Secretary of State of California, serving eight terms from 1911 until his death in 1940.[1] At the time of his death, he was the longest-serving state official in the nation.[2] His son, Frank M. Jordan, was elected to succeed him in 1942, the first man in the history of California to be elected to succeed his father in a state constitutional office.[3]