Charles Donald Jacob (June 1, 1838 – December 25, 1898)[1] was an American politician who served four terms as mayor of Louisville, Kentucky, two consecutively in 1873–78, then later in 1882–84 and 1888–90.

[2] His mother was the granddaughter of Commodore Richard Taylor of American Revolutionary War fame.

His older brother was Richard Taylor Jacob, who became Kentucky Lieutenant Governor, and his brother-in-law was James Brown Clay, who was elected as a U.S. Representative.

In this term, he established the Park Commission and managed the purchase of a plot of land called "Burnt Knob".

[3] Jacob was appointed U.S. minister to Colombia by President Grover Cleveland and served in that role for two years, until he resigned.

[2] In 1886, Jacob was elected president of the Mutual Life Insurance Company of Kentucky, a position he held until his death.