Robert John Grant (November 12, 1862 – November 24, 1949)^[1] was Director of the United States Mint from 1923 to 1933.

Grant was born in Nova Scotia. Before becoming Director of the U.S. Mint, Grant was the Superintendent of the Denver Mint. In 1923, President Calvin Coolidge nominated Grant to be Director of the United States Mint and Grant subsequently held this office from November 1923 to May 1933.^[2] Upon leaving the U.S. Mint, Grant sailed to Shanghai to become mint adviser to the Chinese Nationalist government.^[3]