John Duer (October 7, 1782 – August 8, 1858) was a New York attorney, jurist, and co-founder of Children's Village.

John Duer entered the army at age 16, but after two years left to read law in the office of Alexander Hamilton.

In 1825 he was appointed with Benjamin F. Butler and John Canfield Spencer to the commission that revised the state statutes, and he was especially active in preparing the first half of the work.

Duer died on Staten Island on August 8, 1858, and was buried at Trinity Churchyard Cemetery in Manhattan.

At the time of his death, he was editing Duer's Reports of the Decisions of the Superior Court, the sixth volume of which he left incomplete.