Samuel C. Pomeroy, American businessman and politician (died 1891)

Samuel Clarke Pomeroy was a United States senator from Kansas in the mid-19th century. He served in the United States Senate during the American Civil War. Pomeroy also served in the Massachusetts House of Representatives. A Republican, he also was the mayor of Atchison, Kansas, from 1858 to 1859, the second president of the Atchison, Topeka and Santa Fe Railroad, and the first president to oversee any of the railroad's construction and operations. Pomeroy succeeded Cyrus K. Holliday as president of the railroad on January 13, 1864.

January 3 is the third day of the year in the Gregorian calendar; 362 days remain until the end of the year.