Henry Lamartine Hertz (November 19, 1847 – July 3, 1926) was an American businessman and politician.

In 1869, Hertz emigrated to the United States and settled in Chicago, Illinois.

From 1901 to 1910, Hertz served as collector of the United States Internal Revenue.

Hertz died of a heart attack at his home in Chicago, Illinois.

[1][2] Peter B. Olsen, who served in the Illinois General Assembly, was a close associate of Hertz.