John Harvey Tolan (January 15, 1877 - June 30, 1947) was a U.S. Representative from California.
Born in St. Peter, Nicollet County, Minnesota, Tolan attended the public schools. He moved to Anaconda, Montana, in 1897. He was graduated from the law department of the University of Kansas at Lawrence in 1902. He was admitted to the bar the same year and commenced the practice of law in Anaconda, Montana. Attorney of Deer Lodge County, Montana from 1904 to 1906. He moved to Oakland, California, in 1914 and continued the practice of law.
Tolan was elected as a Democrat to the Seventy-fourth and to the five succeeding Congresses (January 3, 1935-January 3, 1947). He was not a candidate for renomination in 1946 to the Eightieth Congress. He died in Westwood, California, on June 30, 1947. He was interred at Holy Sepulchre Cemetery, Hayward, California.