Christopher Augustus Bergen (August 2, 1841 – February 18, 1905) was an American Republican Party politician who represented New Jersey's 1st congressional district in the United States House of Representatives for two terms from 1889 to 1893.

Born in Bridge Point, New Jersey, Bergen attended Harlingen School and Edge Hill Classical School and was graduated from Princeton College, where he studied law, in 1863.

He was an unsuccessful candidate for renomination in 1892, after which he resumed the practice of law.

In 1903, Bergen moved to Haverford, Pennsylvania, where he died on February 18, 1905.

His son, Martin V. Bergen, was also a lawyer, played football and baseball at Princeton University, and coached football at Princeton, Grinnell College, and the University of Virginia.