Leon Joseph Cadore (November 20, 1891 – March 16, 1958) was an American right-handed pitcher in Major League Baseball from 1915 to 1924.

Born in Chicago, Illinois, Cadore was orphaned at 13 and went to live with his uncle, Joe Jeannot, in northern Idaho in Hope, a village east of Sandpoint on the shore of Lake Pend Oreille.

[1] Cadore graduated from Sandpoint High School, then attended Gonzaga University in Spokane from 1906 to 1908.

[2] Cadore played for the Brooklyn Robins from 1915 to 1923 and then finished his MLB career with the Chicago White Sox in 1923 and New York Giants in 1924.

[1][7] His wife died in 1950, and he succumbed to cancer at the age 66 at the Veterans Hospital in Spokane, Washington, in 1958.