Charles Elbridge Cox (February 21, 1860 – February 3, 1936) was an American lawyer and judge who became the 55th justice of the Indiana Supreme Court, serving from 1911 to 1917. Elected as a Democrat in the Fall of 1910, he was Chief Justice by the end of his six-year term. The "Marshall Constitution" case and the "Technical Institute" case were among the important decisions made by the court during his tenure. As a judge in the Indiana Supreme Court and in lower courts, he never had a decision reversed.