Joseph Rockwell Swan (October 21, 1878 – November 1965) was an American investment banker, football player and coach.

Swan was a member of the 1900 Yale team that finished its season with a perfect 13–0 record, outscoring opponents by a combined score of 336 to 10.

"[4] After graduating as part of Yale's class of 1902, Chadwick agreed to return as the school's head football coach in the fall of 1902.

[1] In 1910, he became a partner in the Wall Street firm of Kean, Taylor & Co.[8] During World War I, Swan served as an officer of the American Red Cross in Europe.

[1] In 1934, following the division of commercial and investment banking as part of the New Deal reforms, Swan became the senior partner of Edward B. Smith & Co., which took over much of the securities business of the Guaranty Company.

[1] When he retired from Smith Barney in 1944, Swan indicated that he intended to devote most of his attention to a 900-acre farm in Connecticut where he conducted experiments with flowers.