Francis Patrick Matthews was an American who served as the 8th Supreme Knight of the Knights of Columbus from 1939 to 1945, the 50th United States Secretary of the Navy from 1949 to 1951, and United States Ambassador to Ireland from 1951 to 1952.

The Supreme Knight of the Knights of Columbus is the title of the chairman of the board and chief executive officer of the Knights of Columbus. The organization comprises approximately 1.9 million members in more than 15,000 councils and operates an insurance company with over $109 billion of life insurance in force, as of 2020.