| John James Patterson | |
| Jr/Sr: | United States Senator |
| State: | South Carolina |
| Term Start: | March 4, 1873 |
| Term End: | March 3, 1879 |
| Predecessor: | Frederick A. Sawyer |
| Successor: | Wade Hampton III |
| Office1: | Member of the Pennsylvania House of Representatives from Juniata and Union Counties |
| Term1: | January 4, 1859 – January 1, 1861 |
| Predecessor1: | Thomas Bower |
| Successor1: | George W. Strouse |
| Birth Date: | 8 August 1830 |
| Birth Place: | Waterloo, Juniata County, Pennsylvania |
| Death Place: | Mifflintown, Pennsylvania |
| Party: | Republican |
| Serviceyears: | 1861–1865 |
| Rank: | Captain |
| Unit: | Fifteenth U.S. (Regular) Infantry |
| Branch: | United States Army |
| Battles: | American Civil War |
| Allegiance: | United States of America |
John James "Honest John" Patterson (August 8, 1830September 28, 1912) was a businessman and United States Senator from South Carolina. He was a Republican.
Born and raised in Waterloo, a populated place in Juniata County, Pennsylvania, he attended public schools and then Jefferson College in Canonsburg. During the 1850s he engaged in newspaper and banking businesses in Pennsylvania; he published the Juniata Sentinel in 1852 and in 1853 became editor and part owner of the Harrisburg Telegraph in Harrisburg, the state capital. He first entered politics in 1859 when he was elected to the Pennsylvania House of Representatives, in which he served until 1861 when the Civil War began.
He joined the United States Army and served as a captain in the Fifteenth U.S. (regular) Infantry. He also ran for a seat in the United States House of Representatives in 1862, but lost.
After the war Patterson moved to Columbia, South Carolina, and engaged in railroad construction. He again entered politics and in 1873 was elected by the South Carolina Legislature to the U.S. Senate as a Republican.
He was criticized by the Ku Klux Klan in South Carolina for being a so-called "carpetbagger". Patterson was the chairman of the Committee on Education and Labor from 1875 to 1877 and a member of the committee on territories from 1877 to 1879. He was known for speaking out against events such as the Hamburg Massacre and supporting the rights of African-Americans in South Carolina.[1] By the time his term ended in 1879, Reconstruction had ended and the Democrats had taken nearly all power in South Carolina, so Patterson had no hope of reelection.
After leaving the Senate he continued to live in Washington, D.C., and engaged in financial enterprises. In 1886, he moved to Mifflintown, Pennsylvania, where he lived until his death. He continued to be active in business, particularly in running a company that installed electric lightbulbs. He died on September 28, 1912. He is buried in the Westminster Presbyterian Cemetery.