Francis Patrick Matthews (March 15, 1887 – October 18, 1952) served as the 8th Supreme Knight of the Knights of Columbus from 1939 to 1945, the 49th United States Secretary of the Navy from 1949 to 1951, and the 8th United States Ambassador to Ireland from 1951 to 1952.
Born in Albion, Nebraska, Matthews spent most of his adult life in Omaha. He graduated from Creighton University in Omaha in 1913, then practiced law in that city from that time onward. He was active in business pursuits, civic and religious affairs and Democratic Party politics. From 1933 through 1949, he served as a consultant to the Reconstruction Finance Corporation.
During the Second World War, Mr. Matthews served as a Director and Vice President of the United Service Organizations (USO) and was also involved in war-relief work. He was Director (1941–1951) of the Department of Finance in the U.S. Chamber of Commerce. He also chaired their "Committee on Socialism and Communism." Following the war, he served briefly (1946–1947) on the President's Committee on Civil Rights.
President Harry S. Truman tapped Matthews in early 1949 to become Secretary of the Navy (SECNAV) when the previous Secretary of the Navy, John L. Sullivan, resigned in protest when Secretary of Defense (SECDEF) Louis A. Johnson canceled the heavy attack aircraft carrier USS United States (CVA-58).