Constitution Day is a federal observance in the United States that commemorates the signing of the U.S. Constitution on September 17, 1787. Unlike major national holidays such as Independence Day or Thanksgiving, Constitution Day does not grant citizens a day off from work or school, contributing to its low profile among the general public.

The holiday was formally established in 2004 through an amendment to an omnibus spending bill, introduced by the late Senator Robert Byrd (D-W.Va.). The legislation requires that all educational institutions receiving federal funding hold educational programs regarding the Constitution on that date. However, the observance has struggled to gain cultural traction, with many Americans remaining unaware of its existence or the specific history it commemorates.

While the holiday is intended to foster civic education and appreciation for the nation's founding document, critics and observers note that its lack of status as a public holiday limits its impact. The Hill reports that the holiday was essentially created through a quiet legislative maneuver, which may explain why it has not achieved the same level of public engagement as other national observances. The discrepancy between the holiday's intended purpose—to honor the framework of American government—and its current state of public obscurity highlights a gap in civic awareness.