John O. Mitchell (1858–1921) was an American politician who served as the 8th and 10th Mayor of Tulsa.

He was the first mayor to be elected to non-consecutive terms.

He invested heavily in west Tulsa real estate.

He is one of two mayors, the other being Herman Frederick Newblock, who served non-consecutive terms.

[7] John O. Mitchell was born in Dade County, Missouri on October 22, 1858.