James Joseph Heffernan (November 8, 1879 – January 27, 1967) was an American architect and politician who served six terms as a U.S. Representative from New York from 1941 to 1953.

James Joseph Heffernan was born in Brooklyn, New York, on November 8, 1888.

[1] He graduated from Bryant & Stratton College in 1906 and Pratt Institute in 1908, and became an architect.

[2] He was a leader in Brooklyn's Democratic Party, and was a Delegate to several state and national conventions.

Heffernan served as Brooklyn's Highway Commissioner from 1926 to 1933,[3] and was a Delegate to the 1938 state constitutional convention.