Frederick Moulton Alger Jr. (August 3, 1907 – January 7, 1967) was an American politician and diplomat.

[1] Alger served in the United States Navy during World War II.

[1] Alger unsuccessfully ran for the position of United States Representative from Michigan's 14th District in 1936.

[1][3] Alger was appointed to the position of United States Ambassador to Belgium by President Dwight D. Eisenhower on May 26, 1953.

Alger was a member of a number of organizations including the American Legion, the Elks, the Sons of the American Revolution, Veterans of Foreign Wars, Military Order of the World Wars, and was a Freemason.