Charles Gus Johnson (October 12, 1880 – October 14, 1957) was a Swedish-American politician who served as California state treasurer from 1923 to 1956.

Johnson was born on October 12, 1880, in Sweden.

[1] From 1913 to 1921, Johnson served as California State Superintendent of Weights and Measures.

Johnson was forced to resign on October 31, 1956, after stories, which were started by A. Ronald Button who assumed the position of Treasurer after Johnson, alleging that Johnson was funnelling state funds into personal loans; none of which was proving.

[1] Johnston died on October 14, 1957, in Sacramento, California, at age 77.