Leonardo Castellanos y Castellanos

Leonardo Castellanos y Castellanos (November 5, 1862 in Ecuandureo, Michoacán − May 19, 1912) was a Mexican Roman Catholic bishop.

Ordained to the priesthood on March 20, 1886, Castellanos y Castellanos was named bishop of the Roman Catholic Diocese of Tabasco, Mexico in 1908 and died in 1912 while still in office.