Augustus Richard Elwood (October 18, 1819 in Richfield Springs, Otsego County, New York – June 10, 1881) was an American merchant and politician from New York.
On July 16, 1846, he married Olive Beardsley Hyde (1824–1900).
In 1848, he joined the Free Soil Party.
He was Supervisor of the Town of Richfield from 1865 to 1868; and a member of the New York State Senate (20th D.) in 1870 and 1871.
He was buried at the Lakeview Cemetery in Richfield Springs.