Francis Xavier Ahearn[2] (February 26, 1917 – December 12, 2006) was an American politician who served on the Boston City Council from 1952 to 1958.

In 1940 he married Doris E. Johnson, whom he first met when they attended junior high school.

[3][5] During World War II, Ahearn served in the United States Navy as a legal officer at the Naval Air Station at Pearl Harbor.

[3] During the late 1940s, Ahearn served as the chairman of the Plan E for Boston Committee, a group that wanted the city to adopt a council/manager form of government.

[3] After leaving the Secretary's office, Ahearn served as chief legal counsel to the State Appellate Tax Board.