Johnson N. Camden Jr. (January 5, 1865 - August 16, 1942) was a United States Senate from Kentucky. His father, Johnson N. Camden, had been a U.S. Senator from West Virginia.
Born in Parkersburg, West Virginia, Camden Jr. attended Episcopal High School in Alexandria, Virginia, Phillips Academy in Andover, Massachusetts, Virginia Military Institute in Lexington, Virginia, Columbia Law School in New York City, and the law school at University of Virginia in Charlottesville. Although admitted to the bar in 1888, he never practiced.
He moved to Spring Hill Farm near Versailles, Kentucky in 1890 and became involved in farming and horsebreeding. He was also interested in the opening and development of the coal fields in eastern Kentucky. He was appointed as a Democrat to the U.S. Senate on June 16, 1914 to fill a vacancy caused by the death of his predecessor, William O. Bradley. He was elected on November 3, 1914 and served until March 3, 1915. He was not a candidate for renomination in 1914. He went back to agricultural activities on a farm near Paris, Kentucky until he died. He was buried in Frankfort Cemetery in Frankfort.
Preceded by: William O. Bradley United States Senator (Class 3) from Kentucky 1914 - 1915 Succeeded by: J. C. W. Beckham