Le Gage Pratt (December 14, 1852 – March 9, 1911) was an American businessman and politician who served as a U.S. Representative from New Jersey for one term from 1907 to 1909.

Born in Sterling, Massachusetts, Pratt was educated in the common schools.

In 1897, he tendered his resignation and moved to East Orange, New Jersey, where in 1903 he accepted a position with the Mutual Benefit Life Insurance Company at Newark, New Jersey.

He was named company vice president, an office he held until elected to Congress.

While in office, he investigated allegations of kickbacks during the construction of the Panama Canal.