John Charles Vivian (June 30, 1887 – February 10, 1964) was an American attorney, journalist, and Republican politician who served as the 30th governor of the state of Colorado from 1943 to 1947.

Vivian married Maude Charlotte Kleyn, a professor from the University of Michigan School of Music.

Vivian served in the United States Marines during World War I and became the Jefferson County Attorney in 1922.

In 1942, Republican Party officials decided to nominate Vivian for governor instead of incumbent Colorado Governor Ralph Lawrence Carr, who had angered many with his opposition to the internment of Japanese-American citizens.

Governor Vivian was a staunch fiscal conservative in both public policy and his personal life.