John Brian Francis "Jack" Gaughan, pronounced like 'gone' (September 24, 1930 – July 21, 1985), was an American science fiction artist and illustrator and multiple winner of the Hugo Award in the category of Best Professional Artist.

Richard Peter Gaughan (born 17 May 1948) is a Scottish musician, singer and songwriter, particularly of folk and social protest songs.

John Davis Gaughan, Sr. (October 24, 1920 – March 12, 2014) was a casino owner and operator from the early 1950s in Las Vegas, Nevada.

(March 17, 1865 – December 31, 1913) a sergeant (Originally an infantry worker) serving in the United States Marine Corps during the Spanish–American War who received the Medal of Honor for bravery.

William (born July 10, 1975) an American former professional racing driver who has competed in off-road and stock cars.