Fernando Alessandri Rodríguez (May 21, 1897 – March 27, 1982) was a Chilean political figure, candidate of the centre-right in Chile's 1946 presidential election.

He completed his early studies at the Instituto Nacional, and later graduated as a lawyer from the Universidad de Chile on October 18, 1919.

He became professor of Procedural law at the same university in 1922, and in 1924, he married Olga Lyon Vial, with whom he had one son, Fernando, who died at the age of three.

He joined the Liberal party in 1920, and participated actively in the Chilean presidential election of 1920 that was won by his father, Arturo Alessandri.

Nonetheless, his split of the right-wing voting base resulted in the triumph of Gabriel González Videla, with him finishing in third place.