Daniel Dod (28 September 1788 Virginia – 9 May 1823 New York City) was a mathematician and a mechanical engineer.

In 1811 he declined an appointment in Rutgers as professor of mathematics, in order to devote himself to this business.

In 1819 the “SS Savannah,” with an engine of his building, made the first steamship voyage across the Atlantic, and returned in safety after visiting England and Russia.

[1] In 1821, Dod moved to New York City, where he was reputed the most successful engine builder in the United States.

In 1823, having altered the machinery of a steamboat, he went on board to witness the effect of his repair by a trial trip on the East River.