John Rodman was an American lawyer and politician from New York and Florida.
He married Harriet Fenno, daughter of John Fenno.
Harriet Rodman died in 1808, and was buried in Trinity Churchyard. Their only child was Anna Eliza Rodman (ca 1801-1881). During the War of 1812, he was a major of artillery.
In 1814, he published in New York his translation of the Commercial Code of France.
He was New York County District Attorney from 1815 to 1817. In May 1821, expecting the cessation of Florida by the Adams–Onís Treaty to take effect in July, Rodman was appointed by President James Monroe the first Collector of the Portuguese of Saint Augustine.
Rodman was re-appointed several times, and remained in office until 1842. During his tenure as Collector, he also held other local offices (at times acting as Mayor), and practiced law in the local courts.