Charles Clement Johnston (April 30, 1795 – June 17, 1832) was a U.S. Representative from Virginia.
Born in Prince Edward County, Virginia, and educated at home, he moved with his parents to Panicello, near Abingdon, Virginia, in 1811. He studied law and was admitted to the bar in 1818 and commenced practice in Abingdon, Virginia. He was elected as a Jacksonian Democrat to the 22nd Congress and served from March 4, 1831, until his death by drowning near one of the docks in Alexandria, Virginia, on June 17, 1832, and is interred in the Congressional Cemetery in Washington, D.C.
His brother Joseph E. Johnston was a Confederate general and also, much later, a U.S. Representative.