John William Clouser (born March 29, 1932) was an American robber who was on the FBI Ten Most Wanted Fugitives list[1] in 1965.

A former police officer and detective in Orlando, Florida,[2] Clouser was added on the list on January 7, 1965 and removed when a federal process against him was dismissed in 1972.

[3] He was previously committed to a mental hospital after being arrested for kidnapping and armed robbery, which he later escaped in April 1964.

[4][5] Clouser surrendered to law enforcement on August 21, 1974.

He later authored a book, The Most Wanted Man in America detailing the time he eluded authorities while on the list.