Charles Edgar Mckenzie (October 3, 1896 – June 7, 1956) was a U.S. Representative from Louisiana's 5th congressional district, based in the northeastern quadrant of his state, for two terms from 1943 to 1947.

He volunteered for service in the Louisiana National Guard and was stationed on the Mexican border in 1916, when U.S. president Woodrow Wilson sent General John J. Pershing in an unsuccessful attempt to capture the bandit Pancho Villa.

During World War I, McKenzie was mustered into the United States Army on April 1, 1917, and commissioned a second lieutenant in the 156th Infantry, which saw service overseas in the 39th and 89th divisions from June 1918, to September 1919.

He returned to Monroe and operated businesses relating to oil, natural gas, finance-brokerage, trucking, and insurance.

In 1943, McKenzie challenged incumbent congressman Newt V. Mills for the Democratic nomination and won by a small margin.