Thomas Whelan (1898–1921) was an executed Irishman.
Thomas Whelan may also refer to:
Thomas E. Whelan, U.S. Ambassador to Nicaragua from 1951-1961 Thomas J. Whelan (mayor) (1922–2002), mayor of Jersey City Thomas J. Whelan (judge) (born 1940), United States federal judge Tom Whelan (1894–1957), American football player
See also Whelan (disambiguation)