| Honorific Prefix: | Captain |
| Jacob Brock | |
| Birth Date: | July 5, 1811 |
| Birth Place: | Hartford, Connecticut, US |
| Resting Place: | Jacksonville, Florida, US |
| Occupation: | Steamboat captain |
| Known For: | Founding Enterprise, Florida |
| Spouse: | Rhoda Stevens Brock |
| Children: | 2 |
Jacob Brock (July 5, 1810 – September 22, 1876) was a prominent steamboat captain and a pioneer in the early establishment of Enterprise, Florida.
Jacob Brock was born in Hartford, Connecticut on July 5, 1811. He was the third of twelve children born to Jacob Brock and Abigail Sanders.
In 1853, Brock bought a steamship that he named the Darlington. In 1860, he built a second steamboat which he named the Hattie after one of his daughters.