Ammiel J. Willard (June 21, 1822 – May 5, 1900) was a chief justice on the South Carolina Supreme Court. He was born in Albany, New York in 1822. He studied law under Willis Hall, the attorney-general of New York, before being made assistant counsel of New York City in 1848. Having lost the chief justiceship, Willard moved to Washington, D.C. in 1884. He died at his home in Washington, D.C. on May 5, 1900, and is buried at Arlington National Cemetery.