Cornelius Bernhard Hanssen (25 February 1864 – 16 April 1939) was a Norwegian teacher, shipowner and politician for the Liberal Party. He was born in Feda in Vest-Agder, Norway. He was the son of a farmer, and younger brother of politician Anders Kristian Rørvik. He graduated from teacher's seminary in Christianssand (now Kristiansand) in 1883, worked as a teacher from 1883 to 1891. He bought the newspaper Agder in Flekkefjord and started as editor-in-chief from 1892. Two years later, he started the publication, Det Norske Fredsblad which he published and edited from 1894 to 1899.