Jacob Welsh Miller (August 29, 1800 – September 30, 1862) was a United States senator from New Jersey.

In 1800, Miller was born in German Valley, New Jersey, United States.

While in the Senate, he was chairman of the committee on the District of Columbia (Twenty-seventh and Twenty-eighth Congresses).

[1] In 1825, Miller married Mary Louisa Macculloch, the daughter of George P. Macculloch, a wealthy Morristown engineer and businessman who had designed and built the Morris Canal.

They had nine children, including attorney George Macculloch Miller,[2] and Captain Lindley Miller, who served as an officer of a black infantry regiment during the Civil War and wrote "Marching Song of the First Arkansas".