Lewis Morris Rutherfurd (November 25, 1816 – May 30, 1892) was an American lawyer and astronomer, and a pioneering astrophotographer.

He invented instruments for his studies, including the micrometer for measuring photographs, a machine for producing improved ruled diffraction gratings, and the first telescope designed specifically for astrophotography.

[4] In 1873, then President Ulysses S. Grant appointed Rutherfurd one of the scientific commission to attend the Vienna Exposition, however, he declined the honor due to previous business engagements in the United States.

In 1884, he was named by President Chester A. Arthur as one of the delegates to the International Meridian Conference which met in Washington in October, 1885.

[2] He was one of the original members of the National Academy of Sciences created in 1863, and was an associate of the Royal Astronomical Society.