Samuel Howard Sloan (born September 7, 1944) is an American chess player, publisher and political figure based in New York City.
In 2006, Sloan served on the Executive Board of the United States Chess Federation.
In 2006 Sloan was elected as an officer to the Manhattan Libertarian Party County Committee as Director of Media Relations.
In 1970, Sloan established a registered broker-dealer that traded over-the-counter stocks and bonds.
Sloan had no formal legal training but orally argued a case before the Supreme Court after litigating against the Securities and Exchange Commission over policies regarding the trading of penny stocks.
The Court ruled in his favor, 9–0.
Sloan is the last non-lawyer to argue before the court.
He has run unsuccessfully or attempted to run for several other city, state and national government political offices, including for President of the United States.