Phineas Jones ( born April 18, 1819 in Spencer, Worcester County, Massachusetts, † April 19, 1884 in Newark, New Jersey ) was an American politician. Between 1881 and 1883 he represented the State of New Jersey in the U.S. House of Representatives.
Phineas Jones attended the public schools of his home. Later he worked in crafts and trade. In 1855 he moved to Elizabeth in New Jersey. There he sat from 1856 to 1860 in the City Council. Since 1860, he lived in Newark. At this time he began a political career as a member of the Republican Party. He was Vice President of the agricultural association of New Jersey. In 1873 and 1874 he was a member of the New Jersey General Assembly.
In the congressional elections of 1880 Jones was in the sixth constituency of New Jersey in the U.S. House of Representatives in Washington DC chosen, where he became the successor of John L. Blake on March 4, 1881. Since he resigned in 1882 to run again, he was able to complete only one term in Congress until March 3, 1883. After the end of his time in the U.S. House of Representatives to Phineas Jones withdrew into retirement. He died on April 19, 1884, one day after his 65th birthday, in Newark.