Ernest Sargent Barnard (July 17, 1874 – March 27, 1931) was the third President of the American League, serving from 1927 until his death in 1931.

During this time he often acted as a mediator between American League president Ban Johnson and Commissioner Kenesaw Mountain Landis.

Realizing he'd made a mistake, Dunn brought Barnard back to the team in 1918.

When AL owners removed Ban Johnson, the league's founder, from the league presidency in 1927, Barnard, after first clearing the way by arranging the sale of the Indians to a group headed by Alva Bradley, replaced Frank Navin who had served as acting president.

Barnard was re-elected to a three-year term in December 9, 1930, but died suddenly three months later just prior to an examination at the Mayo Clinic in Rochester, Minnesota.